Wind Wall

Abstract

A wind wall is a physical structure consisting of one or more wind cells arranged adjacent to each other in an ordered and symmetrical manner so that they constitute as a whole a continuous structure of wind cells that is self-sustaining and modular along three physical dimensions, wherein each wind cell has an inlet and an outlet, wherein the inner surface from the inlet to the outlet has the shape of a rotating cambered (upper surface) blade profile, and wherein the inlet and the outlet have equal or substantially equal dimensions. A wind cell is an integral part of a wind wall, an aerodynamic structure specifically designed to increase the wind speed within the critical space, thereby increasing the wind energy available to the wind turbine rotor. The increase in wind speed is achieved by intentionally creating an environment with a high pressure difference and simultaneously creating an environment specifically designed to maintain laminar wind and mitigate turbulence. The wind wall itself is a new generation of wind systems that is based not only on the aerodynamic efficiency of the wind turbine, but also on the aerodynamic efficiency of the structure and environment surrounding the wind turbine. In this sense, given the same available wind resource in nature, the new generation of wind systems based on the application of wind walls will be able to increase wind speeds, thereby increasing potential power density, thereby generally increasing power generation capacity.

Description

Technical Field

[0001] The technical field to which the present invention corresponds belongs to wind energy, the main attributes of which are related to the increase and improvement of the process of converting the kinetic energy of wind into mechanical energy for subsequent use and into electrical energy.

[0002] The invention will from now on be referred to as a "wind wall", which in itself refers to a new wind system that shows a much higher production efficiency than conventional wind systems (wind farms) to exploit the kinetic wind energy available in nature. In this sense, the application of wind walls has a great potential in terms of improving performance, efficiency, power and therefore the ability to generate electricity from wind energy. Background Art

[0003] The basics of wind power systems

[0004] A) Kinetic Energy of Wind: Wind is a mass of air in motion that moves horizontally from an area of ​​high pressure to an area of ​​low pressure in a regular pattern. Each mass element in motion has a certain amount of kinetic energy (Ec) that is proportional to the square of the wind's velocity (V) and mass (m), respectively.

[0005] Ec=1 / 2.m.(V) 2 .

[0006] B) Wind Force: Wind force is measured not only by the kinetic energy present in the wind, but also by the projected aerodynamic area of ​​the moving object or element facing the wind and subtracting the kinetic energy accordingly. The equation governing wind force is as follows:

[0007] F = (dynamic pressure). (projected area). (aerodynamic coefficient);

[0008] F=1 / 2.p.(V 2 ).A.Cd;

[0009] in:

[0010] F = wind force;

[0011] p = air density;

[0012] V = wind speed;

[0013] A = reference area or projected area of ​​the object facing the wind;

[0014] Cd = aerodynamic drag coefficient (drag);

[0015] Wind force is expressed physically as kilograms meters per square second, or Newtons.

[0016] C) Maximum power that can be extracted from the wind: The kinetic energy per unit time that passes through the reference surface (A) is the power (P). Considering that the wind is a fluid with kinetic energy, if an element is inserted in the wind, the velocity V2 of the wind after it passes through it will be lower than the original V1 (the kinetic energy is reduced). The change in flow velocity means that there is already a force on the inserted element, or in other words, energy has been extracted from the system through the inserted element.

[0017] Consider the wind flow through a cylinder, the variable placed in motion by the flow consists of a rotor or propeller disk positioned perpendicular to the direction of the incident wind, where the speed of the incident wind is V1. The air passing through the cylinder passes over the rotor, imparting some of its kinetic energy, where the speed of the air is reduced to V2, and a corresponding pressure difference is established on both sides of the cylinder.

[0018] The maximum power that can be extracted from the wind is expressed as follows, in physical terms in newton meters per second or watts:

[0019] P = 1 / 2.pA (V 3 );

[0020] in:

[0021] P = maximum power that can be extracted from the wind;

[0022] p = air density;

[0023] V = wind speed;

[0024] A = projected area of ​​the windward object.

[0025] Therefore, the maximum extractable power (P) per square meter or projected area (A) is expressed as follows:

[0026] P / A=1 / 2.p.(V 3 ).

[0027] Traditional wind power system:

[0028] At present, the conventional wind power system consists of a group of open wind turbines distributed and separated from each other on sites with appropriate wind conditions to collect wind energy (wind farms). Conventional wind turbines are designed to utilize the kinetic energy of wind existing in nature and convert it into electrical energy, which is achieved through a complex engineering consisting of aerodynamic propellers, rotors, low-speed and high-speed shafts, rotation multipliers, hydraulic and mechanical brakes, generators, voltage transformers, cooling devices, electronic sensors and controllers, wind guide systems, speed regulation systems and power regulation systems, as well as other technical elements.

[0029] A) Energy conversion in wind power systems: In conventional wind power systems, the capture element consists of a rotor that converts the kinetic energy of the wind into mechanical energy, which is then transmitted to a generator and converted into electrical energy. The main elements of the rotor (or propeller) are the blades.

[0030] The design of a wind power system is a complex task that requires the integration of knowledge from different disciplines in order to convert the kinetic energy of the wind into aerodynamic thrust and subsequent rotational torque, with the remaining air energy being as little as possible. In addition to aerodynamics, structural aspects (static and dynamic) related to efficiency, effectiveness, performance, noise, vibration, service life, etc. must also be considered. Roughly, one must know how much power the rotor can produce, the starting speed, the maximum permissible speed, the wind direction orientation system, the speed and power regulation system, etc.

[0031] B) Utilization level of wind power systems and effective extractable power of wind: The laws of physics dictate that most of the kinetic energy of the wind cannot be used. The maximum extractable wind power is defined by the Betz limit, which states that a wind turbine can convert at most 59.26% of the kinetic energy of the wind hitting it into mechanical energy.

[0032] The wind energy captured by the rotor of the wind power system is called the utilized wind energy. The conversion efficiency is described as the conversion coefficient (Cc), which is defined as the ratio between the utilized wind energy and the available kinetic energy. That is, only a part of the kinetic energy of the wind is converted into electricity.

[0033] The variables that influence the conversion coefficient are not limited to the Betz limit, but also include aerodynamic losses, Weibull distribution of the wind, mechanical conversion losses, generator losses, operating parameters, etc. Nevertheless, the progress achieved - which is related to the use of the kinetic energy of the wind and limiting the losses of the wind system itself - produces about 40% of the kinetic energy available with existing technology.

[0034] Thus, the effective extractable power of the wind or the effective power (PE) of the wind system is part of a function related to the maximum extractable power of the wind, equal to the conversion factor; this function is the formula for the effective power of the wind, as follows:

[0035] PE=1 / 2.pA(V 3 ).Cc;

[0036] in:

[0037] PE = effective extractable power of wind or effective power of wind system;

[0038] p = air density;

[0039] V = wind speed;

[0040] A = projected area of ​​the windward object;

[0041] Cc = conversion coefficient.

[0042] C) Technical issues of wind power systems

[0043] Speed ​​regulation system: Most wind turbines today have a constant speed: Despite changes in wind speed, the rotation speed of the wind turbine's rotor must remain almost constant. In addition, the device must limit power and protect the wind turbine from overexertion in strong winds. These functions are assumed by the speed regulation system.

[0044] Conventional wind systems have a steerable speed regulation system whereby the pitch angle is constantly varied; most systems consider fixed blades over a wide range of wind speeds. These methods have many advantages: they help start the rotor, they position the angle of attack of the blades to the optimum operating point, they control the number of turns so that the generator is not overloaded, and they protect the entire system from damage due to high wind speeds.

[0045] Power regulation: From a power perspective, there are two parts: one is the connection of the generator to the grid when its turns are at synchronous speed, which happens when there is no excessive torque and the power produced is constant; the other part is the rotor speed control, which avoids overloading the generator and damaging the wind system.

[0046] The difference between a wind expansion device (diffuser) and a wind amplifier:

[0047] A diffuser is a physical element with a smaller inlet than outlet. In terms of pressure, a diffuser is characterized by the creation of a high pressure area around its structure and a low pressure area at the outlet. In terms of fluid dynamics, a diffuser creates a low pressure environment that draws air in, thereby increasing the velocity of the air through its structure. In terms of turbulence, a diffuser creates a highly turbulent environment that is comparable to the low pressure environment it creates.

[0048] On the other hand, an amplifier is a physical element where the air inlet is larger than the air outlet. In terms of pressure, the amplifier is characterized by the creation of a high pressure area at the wind inlet and a low pressure area at the wind outlet, especially around the amplifier structure. In terms of fluid dynamics, the amplifier creates an environment that pushes the air, thereby increasing the wind speed through its structure. In terms of turbulence, the amplifier (like the diffuser) creates a highly turbulent environment that is equivalent to the low pressure environment it creates.

[0049] In the case of each wind cell of the wind wall of the present invention, it cannot be limited to the category of diffuser or amplifier, because its premise is that the size of the air inlet and outlet are equal. Another significant difference is that the construction of the wind cell of the present invention creates a very low pressure environment within its own structure and has very low turbulence.

[0050] Background of Unconventional Wind Systems:

[0051] For the purpose of developing this concept, we will focus on those precedents in the prior art related to unconventional wind systems with respect to wind amplification systems.

[0052] US2012 / 0261925A1: "Wind turbine system and wind turbine system using a protective cover". It is a wind power system using a diffuser with a cylindrical body having a circular shape surrounding the wind turbine rotor. The function of the diffuser is to create a static pressure drop at the outlet of the air flow, which will produce an increase in wind speed. In terms of performance, the invention foresees that it will be able to increase the wind speed by about 30%-35% in the part of the wall of the cylinder closest to the circular diffuser. The invention does not disclose results related to the amplification of the wind energy obtained throughout the entire projected area of ​​the wind turbine.

[0053] US2010 / 0187828A1: "Apparatus, systems, methods and improvements for the use of wind energy". It is a system for improving a wind farm by combining secondary wind turbines (placed at specific locations within the wind farm) with the use of a Venturi wind tunnel surrounding each secondary wind turbine to produce additional electrical energy. The effect of the Venturi wind tunnel, built with a very specific geometry (a fifth-order polynomial curve), is to increase the wind speed at the secondary wind turbines (horizontal or Savonius type). In terms of production, the invention foresees that by placing the secondary wind turbines behind the primary wind turbines but at a lower height, it will be possible to increase the installed capacity of new or existing wind farms. The invention does not disclose results related to the increase in velocity or pressure difference generated by the specific geometry of the Venturi wind tunnel, nor does it disclose results related to the impact of the wake and turbulence generated by the primary wind turbine on the secondary wind turbine.

[0054] WO2010 / 005289A2: "Wind turbine with diffuser". It is a wind turbine consisting of a horizontal axis wind rotor surrounded by a diffuser with special characteristics, the function of which is to improve the performance of the wind turbine and reduce the noise caused by the operation of the rotor. The outlet diameter of the diffuser must be 8% larger than the inlet diameter. Optionally, the diffuser is integrated into a noise reduction device located at the height of the blade tip. In terms of performance, the invention foresees that the specific configuration of the diffuser manages to better reduce noise pollution compared to other existing diffusers. In addition, the invention foresees that the greatest advantages in terms of cost and production efficiency are achieved by diffusers of smaller dimensions (less than 15 meters in diameter), so the invention will be applicable to wind turbines with an installed capacity of less than 100 kW (preferably 5 kW). This precedent does not disclose the results related to the increase in velocity or pressure difference generated by the geometric lines of the diffuser.

[0055] US2013 / 0266446A1: “Annular profile with mixing elements”. It is a wind turbine surrounded by an annular diffuser with openings scattered along its structure with the purpose of configuring a mixture of air flows: the air flow adjacent to the outer part of the diffuser then enters towards the inner part of the diffuser and the air flow passes through the rotor in the direction of the wind passing through the inlet of the diffuser. In terms of performance, the invention foresees that it improves the means of extracting energy from the wind through the pressure difference generated by the diffuser and the fluid mixture generated by the openings passing through the diffuser profile. Both effects allow the turbine system to have a higher energy yield. The invention does not disclose the results related to the increase in speed or pressure difference generated by the geometric lines of the diffuser.

[0056] WO2018 / 117875A1: "Single-blade hyperboloid wind amplifier". It is a wind amplifier with a single-blade hyperboloid shape, which increases the pressure and speed of the ambient wind by continuously directing the airflow through the structure of the wind amplifier, thereby amplifying the wind speed on the blades of the wind system. In terms of performance, this precedent makes it possible to increase the wind speed by only 0.3 times, thereby increasing the wind force and kinetic energy. The potential benefits associated with this invention are related to any system intended to utilize wind energy for any purpose, not limited to power generation. However, compared with other arrangements and geometries that allow the wind speed to be increased by 3.5 times, it can be seen that the increase of 0.3 times is very small. The geometry of the precedent WO2018 / 117875A1 is based on an unfinished hyperboloid at the origin, while the wind wall of the present invention deals with a complete geometry with two unfinished hyperboloids at the origin, each for the inlet and outlet of the wind; similarly, this precedent is not enclosed under any structure, while the wind wall has a structure of the geometry of the internal aerodynamic chamber. In addition to the above, WO2018 / 117875A1 also proposes a relatively inefficient turbulence suppressor, while the present invention seeks to control laminar flow and eliminate turbulence from the air outlet in an effective manner through the proposed turbulence suppression space. Therefore, this precedent does not disclose the results related to the increase in velocity or pressure difference caused by the geometric lines of the amplifier, nor does it disclose the effects of the present invention on turbulence. On the other hand, the hyperboloid of the single-blade wind amplifier of this precedent, due to its own aerodynamic characteristics, cannot interact with the type of lift generated by the blade profile. That is, the only thing in common between the wind amplifier in the form of a single-blade hyperboloid and the wind wall is that their drag coefficients are similar. However, while the wind wall has a relevant lift coefficient, the lift coefficient of the wind amplifier in the shape of a single-blade hyperboloid can be ignored due to its wind unit with an aerodynamic profile. Summary of the invention

[0057] As a solution to the limited progress focused on amplifying the kinetic energy of the wind with greater efficiency, the present invention solves this shortcoming of the prior art through a new wind system based on a physical, modular aerodynamic structure, hereinafter referred to as a "wind wall", which is characterized by highly efficient amplification of the wind energy available in nature, increasing the wind speed in the critical space (504) by deliberately creating an environment with a stable high pressure difference and stable laminar flow. In this sense, given a certain amount of wind energy present in nature, the wind wall (101) allows a driven increase in the kinetic energy intensity of the wind and, therefore, an available increase in the wind energy density.

[0058] Furthermore, the wind wall (101) should be understood as a solid structure consisting entirely of a limited number of individual aerodynamic units (hereinafter referred to as "wind units"), which are arranged adjacent to each other in an orderly and symmetrical manner, so that they as a whole constitute a continuous structure of wind units (104) that is self-sustaining and modular along the three physical dimensions of height, length and width. That is, by using wind units (104), a wind wall (101) of completely modular dimensions can be built, so that the resulting aerodynamic structure is an optimized structure for certain environmental, technical and economic conditions.

[0059] Complementarily, a wind unit is understood to be an aerodynamically independent structure acting on its own, which is composed of adjacent outer parts (404) and an inner aerodynamic chamber (501), while the inner aerodynamic chamber (501) is composed of a front section, a middle section and a rear section.

[0060] The adjacent outer portion (or the shared closed chord (404)) is the adjacent or adjoining portion that each wind unit (104) shares with other wind units located nearby. In other words, each adjacent outer portion (404) is a physical boundary shared by each wind unit (104) constituting the wind wall (101).

[0061] The inner aerodynamic chamber (501) is the inner part of the wind unit (104) which corresponds to the inner space in which the pressure difference is generated as well as the lift and drag forces caused by the rotating upper surface blade profile.

[0062] The blade profile of the inner aerodynamic chamber is partially based on the upper surface profile of the airfoil of the symmetrical aerodynamic profile, as seen in a cross section parallel to the axis of symmetry. The profile uses the outer camber (upper surface) of the blade profile as the inner surface of the inner aerodynamic chamber (501).

[0063] In a preferred and more specific embodiment, the rotating blade profile includes the shape of a double hyperbolic profile, wherein the double hyperbolic profile includes an inlet hyperbolic surface (506) facing the wind direction and an outlet hyperbolic surface (507) not facing the wind direction, wherein the inlet hyperbolic surface (506) is arranged to be adjacent to and perpendicular to the air inlet (406), and the outlet hyperbolic surface (507) is positioned to be adjacent to and perpendicular to the air outlet (407); wherein the geometric shapes of the inlet hyperbolic surface (506) and the outlet hyperbolic surface (507) of the same wind unit are different from each other, and the size or internal volume of the inlet hyperbolic surface (506) is smaller than the size or internal volume of the outlet hyperbolic surface (507); wherein the inlet hyperbolic surface (506) and the outlet hyperbolic surface (507) are an unfinished leaf shape and are connected by the same circle at the origin, so that the connection between the two geometric figures is continuous, that is, the inlet hyperbolic surface (506) and the outlet hyperbolic surface (507) together form a geometric figure with continuous axial rotational symmetry.

[0064] Regardless of the level of specification of the profile used, the internal aerodynamic chamber (501) and its components as a whole are configured with three distinguishable areas that show very different observable physical sizes. The distinguishable areas are, in order of wind direction: i) the front section or pressure generation space (503); ii) the middle section or critical space (504); and (iii) the rear section or turbulence suppression space (505). The pressure generation space (503) is the space whose axial axis is aligned with the wind direction and whose reference surface faces the wind direction, and is characterized by the maximum resistance to the wind and the maximum pressure level. The critical space (504) is the space located between the pressure generation space (503) and the turbulence suppression space (505), and is characterized by presenting the highest records of wind speed and dynamic pressure of the system. In this sense, the critical space (504) constitutes the space where the wind turbine rotor must be located. The turbulence suppression space (505) is a space whose axial axis is aligned with the wind direction but whose reference surface does not face the wind direction, and is characterized in that it provides a space that is conducive to maintaining laminar flow and adjusting wind speed and pressure relative to the surrounding environment.

[0065] It should be noted that the area covered by the plane of the air inlet (406) located in the pressure generating space (503) of the internal aerodynamic chamber (501) must have the same size as the area of ​​the plane of the air outlet (407) located in the turbulence suppression space (505) of the same internal aerodynamic chamber (501), or preferably has substantially the same size. The above is an important distinction that allows us to distinguish ourselves from the shortcomings of diffusers or wind amplifier devices.

[0066] The above represents an improvement over the prior art as the wind wall (101) manages to surpass the performance of conventional wind systems by significantly increasing the wind speed and therefore the kinetic energy intensity (which translates into an increase in the power density of the wind system) within the critical space (504) of the internal aerodynamic chamber (501) of the wind unit (104).

[0067] According to computational fluid dynamics (CFD) simulations we performed, the wind wall will allow the wind speed within the critical space (504) to be increased by approximately 3.5 times, considering that the maximum amplification of the achievable wind speed is uncertain (but not infinite) as it will depend on the respective configuration of the projected area and the aerodynamic coefficients of the entire wind wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 : Physical diagram of the wind wall.

[0069] 101: Front view of the wind wall composed of wind units;

[0070] 102: Main view of the wind wall composed of wind units: upper focus;

[0071] 103: Front view of the wind wall composed of wind units: lower focus;

[0072] 104: wind unit component of the wind wall;

[0073] 105: Oblique view of the wind wall composed of wind units;

[0074] 106: Top view of the wind wall composed of wind units;

[0075] 107: Bottom view of the wind wall composed of wind units.

[0076] Figure 2 : Transparent view of the wind wall.

[0077] 201: Main view of the transparent wind wall;

[0078] 202: Side oblique view of the transparent wind wall;

[0079] 203: Top view of the transparent wind wall;

[0080] 204: Oblique view from above of the transparent wind wall.

[0081] Figure 3 : Wind unit.

[0082] 301: front view of the wind unit;

[0083] 302: rear oblique view of the wind unit;

[0084] 303: Front view of the wind unit with the symmetry plane;

[0085] 304: oblique view of the wind unit with the plane of symmetry;

[0086] 305: Oblique transparent image of wind unit;

[0087] 306: Transverse transparent image of wind unit.

[0088] Figure 4 : Wind unit part.

[0089] 401: front view of the wind unit;

[0090] 402: Transparent side view of the wind unit;

[0091] 403: Transparent, highlighted side view of the wind unit;

[0092] 404: adjacent external parts or shared closing chords;

[0093] 405: Neck of the wind unit;

[0094] 501: Internal aerodynamics room;

[0095] 502: double hyperbolic profile or upper surface (outer cambered surface) blade profile;

[0096] 406: air inlet;

[0097] 407: Air outlet.

[0098] Figure 5 : Components of the internal aerodynamic chamber.

[0099] 501: Internal aerodynamics room;

[0100] 502: double hyperbolic profile or upper surface (outer cambered surface) blade profile;

[0101] 503: Pressure creates space;

[0102] 504: Critical Space;

[0103] 505: turbulence suppression space;

[0104] 506: entrance hyperboloid;

[0105] 507: export hyperboloid;

[0106] 405: Neck of the wind unit;

[0107] 406: air inlet;

[0108] 407: Air outlet.

[0109] Figure 6: Computational fluid dynamics (CFD) simulation.

[0110] 601: Cross-sectional view of the wind unit;

[0111] 602: air flow boundary layer;

[0112] 603: Maroon legend area, indicating that the wind speed is higher than the ambient wind speed;

[0113] 604: White legend area, indicating inlet or ambient wind speed;

[0114] 605: Light blue legend area, indicating that the wind speed is lower than the ambient wind speed;

[0115] 606: Indication of the minimum and maximum speeds represented in the CFD simulation;

[0116] 502: double hyperbolic profile or outer curved surface (upper surface) blade profile;

[0117] 503: Pressure creates space;

[0118] 504: Critical Space;

[0119] 505: turbulence suppression space;

[0120] 406: air inlet;

[0121] 407: Air outlet. DETAILED DESCRIPTION

[0122] As an element of a mass of air in motion, wind has a certain amount of kinetic energy that is proportional to its mass and exponentially proportional to its speed. Therefore, for the description of the present invention, consider the following equations that determine wind force and available power, respectively:

[0123] F=1 / 2.ρ.(u' 2 ).S ref .C A ;

[0124] P=1 / 2.ρ.S ref .(u' 3 );

[0125] PE=1 / 2.ρ.S ref .(u' 3 ).C C ;

[0126] in:

[0127] F = wind force;

[0128] P = available power;

[0129] PE = effective power of wind system;

[0130] ρ = air density;

[0131] u = wind speed;

[0132] S ref = reference surface of the object under study;

[0133] C A = aerodynamic coefficient of the windward object;

[0134] C C =Conversion factor.

[0135] The above equation shows that the available power will vary exponentially with changing wind speed. In other words, the higher the wind speed, the more power the wind system can use.

[0136] The wind force is physically expressed as kilogram-meters per square second or Newtons. The available power of the wind is physically expressed as Newton-meters per second or Watts. On the other hand, the aerodynamic coefficients can be expressed as the drag coefficient, the lift coefficient or the sideways coefficient, depending on the force being studied. Furthermore, the reference surface can be expressed as the projected area, the blade surface or the side surface, depending on the force being studied.

[0137] Due to the exponential relationship between wind speed and available power, a small increase in wind speed results in a large increase in available power. In other words, wind walls have a significant impact on the effective power produced by a wind turbine by increasing the dynamic pressure and wind speed.

[0138] After establishing the exponential relationship between wind speed and the available power of the wind, the effect of wind wall 101 on wind speed has also been established.

[0139] The wind wall 101 is an aerodynamic object that positively affects the wind speed projected onto the wind system rotor by increasing the pressure difference and thus the wind speed that exists in nature; for the description of the present invention, the following equations determining the size and aerodynamic coefficients of the wind wall 101 are considered:

[0140] F AMP =F D +F L +F S ;

[0141] F D =1 / 2.ρ.(u 2 ).AC D ;

[0142] F L =1 / 2.ρ.(u 2 ).S Lref .C L ;

[0143] F S =1 / 2.ρ.(u 2 ).S Sref .C S ;

[0144] If S Lref =S Sref , then (C L =C S ), and therefore (F L =F S );

[0145] P=1 / 2.ρ.A(u' 3 );

[0146] in:

[0147] F AMP = the dimensionless sum of the total forces exerted on the wind wall;

[0148] F D = the drag or resistance of the wind unit;

[0149] F L = lift (up and down) on the wind cell measured from the inside out;

[0150] F S = lateral force (left and right) on the wind unit measured from the inside out;

[0151] P = available power;

[0152] ρ = air density;

[0153] u = wind speed;

[0154] A = the projected area of ​​the wind unit perpendicular to the wind direction;

[0155] S Lref = projection of the blade surface corresponding to the lift;

[0156] S Sref = blade surface projection corresponding to the lateral force;

[0157] C D = the aerodynamic coefficient of resistance or drag on an object facing the wind, which determines the aerodynamic performance of the wind system in the direction opposite to the wind direction;

[0158] C L =Sustainability aerodynamic coefficient, which determines the aerodynamic performance of the wind system in the direction opposite to gravity;

[0159] C S= Transverse aerodynamic coefficient, which determines the aerodynamic performance of the wind system in the direction perpendicular to the wind direction and gravity.

[0160] Regarding the geometric structure of the wind wall 101, it should be understood as a solid structure composed of a limited number of individual aerodynamic units called wind units 104, which are arranged adjacent to each other in an orderly and symmetrical manner, and are characterized by forming a continuous structure of wind units 104 as a whole, the weight of which is supported by the structure of the wind units 104 itself, and its configuration allows the construction of a configurable structure along the three physical dimensions of height, length and width. In other words, by using wind units 104, a wind wall 101 of completely modular size can be constructed, so that the resulting aerodynamic structure is an optimized structure for certain environmental, technical and economic conditions.

[0161] It should be noted that, although in this article we have discussed a wind wall 101 constructed by a limited number of wind units 104, the above does not exclude that the wind wall 101 may be based on a single huge wind unit ( Figure 3 ) is formed. In this case, the wind wall 101 will be equivalent to a huge wind unit.

[0162] In addition, the wind unit ( Figure 3 ) must maintain a mirror symmetry plane or a bilateral symmetry plane, which must be positioned along the axial axis of the wind unit, which is parallel to the wind flow and / or connects and / or communicates the air inlet 406 with the air outlet 407, so that when the wind unit is cut in half by the symmetry plane, the vertical distances of the point and its image to the symmetry plane are the same.

[0163] The wind unit 104 is understood to be an aerodynamically independent structure that functions on its own, which consists of an adjacent outer portion 404 and an inner aerodynamic chamber 501. It should be noted that the wind unit, the adjacent outer portion 404 and the inner aerodynamic chamber 501 are part of an integral whole, so they share the same mirror symmetry plane and plane symmetry axis or axis symmetry axis, as the case may be. Each of these parts will be explained below ( Figure 4 ):

[0164] a) Adjacent outer portion or shared closed chord 404: It is the outer portion of the wind unit 104 where the airflow boundary layer 602 is formed. In addition, the adjacent outer portion 404 corresponds to the outer wall of the wind unit 104, which serves as an adjacent boundary with respect to the wind unit 104 located nearby. The structure of the adjacent outer portion 404 must have a projection of a geometric figure along the axial axis. That is, a cross section perpendicular to the axial axis of the wind unit 104 must show an adjacent outer portion 404 having the same geometric figure along its entire axial axis. The geometric figure can be, but is not limited to, a polygon, a conical section, or a teardrop shape. In this sense, the adjacent outer portion 404 will have a cylindrical shape with a bottom, and the geometry of the bottom is a conical section (a curve generated by different intersections between a cone and a plane, such as an ellipse, a parabola, a hyperbola, or a circle), an undulating figure (such as a teardrop or a wave), or a polygon (regular or irregular).

[0165] Figure 3 A wind unit with adjacent outer portion 404 viewed from a plane perpendicular to the axial axis is shown, wherein the wind unit is a square. However, it should be understood that the outer shape of the wind unit 104 is not limited to a square, and any geometric shape can be used for this purpose, as indicated in the previous paragraph, such as a circle, triangle, hexagon, octagon, etc.

[0166] The cross section of the adjacent outer portion 404 can conform to the shape of any geometric figure, as long as the geometric figure can contain an imaginary circle inside. The reason for this is that it is necessary to suppress angles as much as possible, because the angles will produce aerodynamic losses in the inner aerodynamic chamber 501. However, on the other hand, geometric figures with angles (such as polygons) optimize the use of space and facilitate the construction of the wind wall 101.

[0167] The reason why the adjacent outer portion 404 is also referred to as a shared closed chord is because the wall of the outer portion of the wind unit 104 coincides with the chord of the blade profile of the inner aerodynamic chamber 501. That is, in theory, as long as the wind unit 104 is not a cylinder and is not placed at the end of the wind wall 101 where there is no adjacent wind unit 104, each wind unit 104 shares a portion of the chord of its blade profile, and the number of times shared is the same as the number of sides of the polygon of its cross section. Therefore, the adjacent wind units 104 share the same chord in the portion where the adjacent boundaries are shared through the adjacent outer portion or the shared closed chord 404.

[0168] The importance of the adjacent outer section 404 is that its own geometry allows each wind unit 104 to be used as a modular building block, thereby enabling a size-configurable wind wall 101 to be constructed with a limited number of wind units 104. It is important to note that the configuration of the wind wall 101 is not limited to wind units 104 having adjacent outer sections 404 of the same size and the same geometry, but rather wind units 104 of different sizes and different geometries, or a combination of both, may be used without limitation.

[0169] In summary, the adjacent outer portion 404 or shared closed chord is a physical boundary shared by each wind unit 104 that constitutes the wind wall 101. As such, the adjacent outer portion 404 is characterized by having a cylindrical shape, whose geometric base is a polygonal, wavy or conical section from a cross-sectional point of view, and whose structural projection configures two important properties: (i) it is this portion that constitutes the shared chord of the blade profile of each adjacent wind unit 104; and (ii) it is this portion of the wind unit that allows the wind unit 104 to be used individually as a modular building block in the construction of the entire wind wall 101.

[0170] b) Internal aerodynamic chamber ( Figure 5 ): It is the inner part of the wind unit where a pressure difference is created, and therefore a wind speed difference. Furthermore, the inner aerodynamic chamber 501 corresponds to the space of the wind unit where the lift generated by the rotating aerodynamic profile is generated.

[0171] The shape of the internal aerodynamic chamber is like an outer cambered blade profile. This profile is based in part on an airfoil profile. This profile uses the outer cambered surface (upper surface) of the blade profile as the inner surface of the internal aerodynamic chamber 501. In other words, by using only the upper surface of the blade profile and not the inner cambered surface of the blade profile itself, it is as if the profile of the internal aerodynamic chamber 501 has been cut along the chord of the blade profile in question, so that the internal aerodynamic chamber 501 only conforms to the profile of the outer cambered surface. Therefore, the aerodynamic profile of the internal aerodynamic chamber 501 is achieved by the rotation of the outer cambered surface around the axial axis of the wind unit, resulting in a continuous aerodynamic profile along its symmetry plane. It should be noted that since the profile of the internal aerodynamic chamber 501 must be centered and adjusted according to the shape of the adjacent external part 404, the thickness of the outer cambered blade profile 502 (the distance between the edge of the profile and the chord) is different in each part of the wind unit.

[0172] Furthermore, the narrowest area of ​​the inner aerodynamic chamber 501 may be circular, but is not limited to such a circular shape, and may also be a different shape (such as a rectangle, more than one wind turbine may fit inside it), as long as the shape is rounded at its ends. For these alternative and special configurations, the concept of creating a complete figure by rotating the outer camber about the axial axis will no longer apply; however, the outer camber blade profile will still be retained when viewed in cross section.

[0173] It should be pointed out that the air inlet 406 and the air outlet 407 of the wind unit must be equal and have the same size or at least basically the same size, wherein the leading edge of the outer curved surface (upper surface) blade profile 502 is arranged continuously and vertically with the air inlet 406, and wherein the trailing edge of the outer curved surface (upper surface) blade profile 502 is arranged continuously and vertically with the air outlet 407.

[0174] In addition, regarding the geometry of the air outlet 407 and the air inlet 406 of the wind unit, any of the following alternatives can be selected: (i) retaining the same geometry of the cylindrical bottom of the adjacent external part; (ii) retaining the same geometry of the neck 405 of the wind unit; (iii) retaining a circular shape at the edge of the geometry of the neck 405 of the wind unit.

[0175] In a preferred embodiment, the outer curved blade profile of the internal aerodynamic chamber may have a specific shape of a double hyperboloid profile. The profile uses two unfinished single-leaf hyperboloids connected at the origin, wherein the geometric figures of each hyperboloid are different from each other. The aerodynamic profile of the internal aerodynamic chamber 501 can be adjusted to a variety of hyperboloids, as long as the air inlet 406 of the first hyperboloid perpendicular to the wind direction of an unfinished leaf at the origin (hereinafter referred to as the inlet hyperboloid) is equal to the air outlet 407 of the second hyperboloid opposite to the wind direction of an unfinished leaf at the origin (hereinafter referred to as the outlet hyperboloid).

[0176] Furthermore, as a prerequisite, the size of the circle at the symmetry origin (origin in Cartesian space) of each hyperboloid of the unfinished leaf at the origin must be the same, so that the connection between the two geometric figures is perfect, that is, the inlet hyperboloid 506 and the outlet hyperboloid 507 together constitute a geometric figure with continuous axial rotational symmetry. In other words, the double hyperboloid profile 502 is composed of the inlet hyperboloid 506 and the outlet hyperboloid 507, which are different from each other and connected at the origin, wherein preferably, the size (or internal volume) of the inlet hyperboloid 506 must be smaller than the size (or internal volume) of the outlet hyperboloid 507, wherein the two hyperboloids must be united by their circles at the origin, and as a basic condition, the circles at the origin of both the inlet hyperboloid 506 and the outlet hyperboloid 507 coincide and are equal in size, so that the double hyperboloid profile 502 is a continuous and symmetrical structure along its axial axis. It is important to point out that the air inlet 406 located in the inlet hyperboloid 506 and the air outlet 407 located in the outlet hyperboloid 507 of the wind unit must have the same size or substantially the same circular shape.

[0177] Since the adjacent outer portions 404 surrounding the inner aerodynamic chamber 501 can have different geometries, it is foreseeable that the distance between the shared closed chord 404 and the aerodynamic profile of the inner aerodynamic chamber 501 is variable across the span of the wind unit 104, with the maximum distance necessarily being at the height of the neck 405 of the wind unit.

[0178] The aerodynamic profile of the internal aerodynamic chamber 501 has similar characteristics, which correspond to: (i) the air inlet 406 and the air outlet 407 of the internal aerodynamic chamber 501 must maintain the same geometry; and (ii) the aerodynamic profile of the internal aerodynamic chamber 501 of the wind unit must maintain the same symmetry plane of the wind unit.

[0179] It is important to note that one wind unit is located next to or in line with another wind unit, and when viewed from a transverse plane parallel to the axis of symmetry of the two wind units, they together form a complete blade profile, the chord of which corresponds to the adjacent outer portion 404 shared between each wind unit 104, and for its part, the internal aerodynamic chamber 501 of each wind unit corresponds to the outer camber (or inner camber) of the blade profile. The technical advantage of doing so is that it utilizes the complete blade profile, aerodynamically directing the wind through the two openings of two adjacent wind units, creating a synergistic effect of increasing wind speed, while utilizing the space used and reducing the amount of material used in manufacturing.

[0180] Regardless of the level of specification of the profile used, the internal aerodynamic chamber 501 and its components as a whole are configured with three distinguishable regions that exhibit very different observable physical sizes. The distinguishable regions are, in order of wind direction: i) the front section or pressure generating space; ii) the middle section or critical space; and (iii) the rear section or turbulence suppression space.

[0181] i) Pressure generation space 503: It is a space whose axial axis is aligned with the wind direction and whose surface directly faces the wind. The pressure generation space 503 corresponds to the space between the area located at the wind inlet 406 and the high-speed critical space 504, wherein the pressure generation space 503 is a region having the following characteristics: it bears the maximum drag force of the wind and presents the highest level of pressure. In physical terms, the pressure generation space 503 must correspond to a scalar-sized spatial volume with a static pressure higher than the ambient pressure.

[0182] ii) Critical space 504: It is the space located between the pressure generating space 503 and the turbulence suppressing space 505. The critical space 504 is characterized by presenting the lowest level of static pressure and the highest record of wind speed and dynamic pressure. Due to the characteristics of the physical size present in this space, the critical space 504 constitutes the space in which the wind turbine rotor must be located in order to utilize the highly concentrated kinetic energy of the wind centered on the space. In physical terms, the critical space 504 should correspond to the volume of space containing the positive differential of the vector magnitude of the wind speed. Coincidentally, if the internal aerodynamic chamber 501 is cut with a transverse plane along its entire axial axis, it will be found that the plane with the smallest cross-sectional area of ​​the internal aerodynamic chamber 501 will be located in the critical space 504. That is, it is inevitable to foresee that the neck 405 of the wind unit is in the critical space 504.

[0183] iii) Turbulence suppression space 505: It is a space whose axial axis is aligned with the direction of the wind but whose surface does not directly face the wind. Turbulence suppression space 505 corresponds to the space between the critical space 504 and the area of ​​the air outlet 407. It is a space with the following characteristics: it is subjected to the least resistance to wind and presents a process of adjusting the magnitude of wind speed and wind pressure relative to the surrounding environment. In physical terms, turbulence suppression space 505 should correspond to the spatial volume that records the negative differential of the vector magnitude of the wind speed after the critical space 504.

[0184] The distinguishable areas of the internal aerodynamic chamber 501 noted above have no pre-established physical boundaries, but rather are scalar limits of primary physical size. That is, the distinguishable areas of the internal aerodynamic chamber 501 are distinguishable from one another because each space is characterized by a specific behavior of the physical size present in the wind unit.

[0185] In summary, the internal aerodynamic chamber 501 is characterized by the internal space of the wind unit in which pressure and wind speed differences are generated, which is a space composed of three distinguishable areas, which present very different observable physical sizes. The distinguishable areas are in the order of wind direction: (i) pressure generation space 503; (ii) critical space 504; and (iii) turbulence suppression space 505.

[0186] Next, it is important to explain the basic principles of wind walls.

[0187] After establishing the components of the wind wall 101, for the purpose of analysis, imagine a plane with a circular hole in the middle (hereinafter referred to as a "hollow flat disk"), whose projected surface is the same as the wind unit 104, and the circular hole in the middle is the same area as the neck 405 of the wind unit. It is important to point out that although the wind unit 104 and the "hollow flat disk" share the same projected area and therefore obtain the same amount of kinetic energy from the wind, the existing difference in the aerodynamic coefficients of these two objects is to explain the difference in pressure gradients and wind speeds generated by each aerodynamic object in question.

[0188] Although the two objects described above interact with the wind force separately, due to aerodynamic effects, the drag force on the wind unit 104 is less than the drag force exerted by the wind on the "hollow flat disk", which means that the wind unit 104 somehow absorbs a smaller amount of kinetic energy from the wind compared to the "hollow flat disk", thereby allowing the difference between the kinetic energy to be preserved through the movement of the air itself.

[0189] In addition to facing a drag coefficient, the wind unit 104 also interacts with a lift coefficient generated by its unique aerodynamic geometry, which generates lift along the blade surface of the inner aerodynamic chamber 501. In this sense, it is important to point out that the blade surface of the inner aerodynamic chamber 501 is rounded, so the vectors of the generated lift forces are concentrically directed toward the interior of the inner aerodynamic chamber 501. These lift forces, when concentrated in the critical space 504, will create a temporary state of greater wind speed amplification, thereby generating dynamic pressure.

[0190] The above suggests that as a result of the aerodynamic shape of the wind unit 104, the amount of kinetic energy of the wind is preserved and amplified is a result of the lift concentrated within the critical space 504, which is responsible for the pressure difference and wind speed increase that the air mass experiences when moving towards the wind unit's outlet 407.

[0191] The effect of the wind wall 101 in the amplification of the kinetic energy of the wind is possible due to two factors: the size of the projected area of ​​the wind wall 101 and the aerodynamic coefficients of the wind elements 104 that make up the wind wall 101. In other words, the increase in available power achieved by the wind wall 101 will be a function of the optimization of the projected area and aerodynamic coefficients of the applied wind elements 104, as well as the specific characteristics of the prevailing wind resource surrounding a given wind system.

[0192] According to CFD simulation ( Figure 6 ), the wind wall 101 will allow increasing the wind speed in the critical space 504 to approximately 3.5 times, taking into account that the maximum amplification of the achievable wind speed is uncertain (but not infinite) since it will depend on the respective configuration of the projected area and the aerodynamic coefficients of the entire wind wall 101. Figure 6 A legend is shown, where the white area 604 corresponds to an ambient wind speed equivalent to 10 m / s, the light blue area 605 corresponds to a space where the wind speed is lower than the ambient wind speed, and the maroon area 603 corresponds to a space where the wind speed is higher than the ambient wind speed. It can be seen that the maroon area is mainly located in two areas: outside the wind unit, especially in the airflow boundary layer 602; and in the critical space 504. Similarly, Figure 6 The figure shows the minimum speed and the maximum speed 606 calculated by the CFD simulation.

[0193] It is important to point out that the limits of wind speed amplification (which is a result of the application of the wind wall 101) are defined as a function of the drag coefficient and the lift coefficient of the wind wall 101, where the drag coefficient is inversely proportional and the lift coefficient is directly proportional. In this sense, although a larger projected area of ​​the wind wall 101 may be beneficial in terms of a larger reference scanning surface, it is important to consider that from a certain point onwards, a larger size of the projected area of ​​the wind wall 101 may present diminishing returns in certain areas of the wind wall 101 due to a higher drag coefficient. However, on the other hand, the drag coefficient and the lift coefficient present curves with positive partial derivatives, which indicates that the negative impact of a higher drag coefficient may be accompanied by a (unrelated) higher lift coefficient and therefore by a higher dynamic pressure product of the current lift. In this sense, for the choice of the ideal size of the wind wall 101, it is important to study and find the optimal point; at which, given certain environmental conditions, the drag coefficient and the lift coefficient produce the highest dynamic pressure of the wind within the critical space 504 of the wind unit 104 constituting the wind wall 101.

[0194] In summary, the wind wall 101 described above is a new generation wind power system that increases the wind speed and therefore increases the intensity of the kinetic energy of the critical space 504 confined within the wind unit 104, thereby increasing the available power given a certain wind kinetic energy (constant or not constant), resulting in a higher power generation performance. Therefore, the wind wall 101 solves the technical problems related to the low utilization rate of the potential kinetic energy of the wind, so that for the same wind resources, the application of the wind wall 101 will allow for better utilization of the kinetic energy of the wind available in nature and increase the power generation given the same wind resources in question.

[0195] Regarding the configuration of wind wall 101, since it is composed of a limited number of wind units 104, there may even be a situation where wind wall 101 is formed based on a single wind unit; therefore, the overall configuration of wind wall 101 will be based on the sum of the individual configurations of each wind unit.

[0196] On the other hand, the individual wind cells need not have a uniform configuration. That is, a wind wall can be constructed based on uniform and symmetrical wind cells 104, but can also be constructed based on differently configured wind cells 104 that differ in size, dimensions, and geometry of the aerodynamic profiles of adjacent outer portions 404 and / or inner aerodynamic chambers 501. In other words, the configuration options for wind wall 101 are endless.

[0197] The selection of the most appropriate configuration of the different wind units 104 that make up the wind wall 101 should be based on a study of the prevailing wind resources at the location where the wind wall 101 is to be installed, as well as on the technical parameters, economic constraints, expected production, available technology, desired environmental constraints, and expected operational constraints for the particular project, etc. That is, the optimal form of the wind wall 101 can be as varied as the wind systems that are created.

[0198] With regard to the clamping (fastening) and support elements, it is important to point out that the adjacent outer portion 404 of each wind unit itself constitutes a structural support. Since the wind units 104 will be exposed to considerable lift and drag forces, the inner portion of the wind unit (i.e., the closed portion that is not directly exposed to the environment) must be appropriately reinforced. Similarly, since the wind units 104 that constitute the wind wall 101 will operate as a whole, it is important to consider the construction of the fixing structure to maintain the integrity of the wind wall 101 as a whole. In this sense, in terms of clamping and support, the wind wall 101 is a self-sustaining structure based on the multiple identical wind units 104 that constitute it, and does not require elevated vertical supports like traditional wind turbines. Nevertheless, the fixing and support structure must be determined to maintain the integrity of the entire wind wall 101. With regard to the technology used to construct the clamping and structural support elements required for the wind wall 101, it should be pointed out that it is not relevant to the discussion of this article, but will depend entirely on the research and technical advice of the branch of engineering specialization that focuses on this.

[0199] On the other hand, the application of the wind wall 101 itself provides a new generation of wind power systems, which are not only based on the mechanical and aerodynamic efficiency of the wind turbine, but also based on the structural and aerodynamic efficiency of the wind wall 101 as an element to amplify the wind speed and potential power density. In this sense, the application of the wind wall 101 provides the following benefits:

[0200] Increased wind power density. Due to the driven increase in wind speed achieved by the present invention, given a certain kinetic energy of the wind in nature, the power density produced by the wind wall 101 is greater than that which can be provided by a conventional wind power system, without using any physical structure to increase the wind speed, but only utilizing the kinetic energy of the wind occurring in nature.

[0201] Improved specific power factor. Given the same projected surface of the system, the wind wall 101 provides significantly higher levels of power per square meter (specific power factor or power coefficient) compared to conventional wind systems. According to previously performed analysis and simulations, the value of the specific power factor can be doubled compared to conventional wind systems.

[0202] Smaller diameter wind turbine rotor. By applying an aerodynamic structure of the wind unit that allows increasing the wind speed within the critical space 504 (where the wind turbine's rotor will be located), the wind turbine rotor can be smaller in diameter and can generate a greater amount of power compared to a conventional wind turbine that utilizes the wind available in nature without any modification.

[0203] · Reduced unit power generation cost. Since the wind turbine rotor provided by the Wind Wall 101 has a higher power coefficient and a smaller size, the investment level per unit power measured in US dollars per kilowatt (US$ / kW) is estimated to be lower than the investment level per unit power of traditional wind power systems.

[0204] In conclusion, given the same wind resource available in nature, the wind wall 101 is of particular relevance in increasing the wind energy density and specific power, and therefore in increasing the power generation capacity, and as an important supplement, leading to a reduction in costs.

Claims

1. A wind wall, characterized in that The invention comprises wind units (104), wherein the wind units are arranged adjacent to each other and constitute a continuous structure as a whole; wherein the wind units are modular, each wind unit has the same and symmetrical configuration, or each wind unit is different and independent from each other, so that the wind wall has a fully configurable size; wherein each wind unit has a separate structure that functions by itself, wherein wind passes through the wind unit on its way from an air inlet (406) arranged on one side of the wind unit to an air outlet (407) arranged on the opposite side of the wind unit; The air inlet (406) and the air outlet (407) are connected and have exactly the same size; Each wind unit includes an internal aerodynamic chamber (501) therein, and the internal aerodynamic chamber (501) is in the shape of a rotating outer arc blade profile; wherein each wind unit comprises an adjacent outer portion (404) formed by an outer wall of the wind unit; Each wind unit maintains a mirror symmetry plane or a bilateral symmetry plane, the symmetry plane is located between the air inlet (406) and the air outlet (407) along the wind unit, and the wind unit is divided into two halves, so that the vertical distance from any point and its image to the symmetry plane is the same; wherein each wind unit maintains an axis of a symmetry plane or an axial plane, the axis dividing the mirror symmetry plane into two parts, the symmetry points of the two parts being equidistant from the axis; The blade profile of the rotating outer arc surface of the internal aerodynamic chamber (501) is formed in the shape of a double hyperbolic profile, wherein the double hyperbolic profile includes an inlet hyperbolic surface (506) facing the wind direction and an outlet hyperbolic surface (507) not facing the wind direction; wherein the inlet hyperbolic surface (506) is adjacent to the air inlet (406) and the air inlet (406) is arranged perpendicularly to the axis of the inlet hyperbolic surface (506), and the outlet hyperbolic surface (507) is adjacent to the air outlet (407) and the air outlet (407) is arranged perpendicularly to the axis of the outlet hyperbolic surface (507); The geometric shapes of the inlet hyperboloid (506) and the outlet hyperboloid (507) of the same wind unit are different from each other, wherein the size or internal volume of the inlet hyperboloid (506) is smaller than the size or internal volume of the outlet hyperboloid (507); A connection between two adjacent wind units comprises the shape of a complete blade profile when viewed in a cross section passing parallel to the axis of symmetry of the two adjacent wind units, and the two wind units are arranged to share a common chord; wherein the chord is contained by the adjacent outer portions (404) of the two wind units; and The inlet hyperboloid (506) and the outlet hyperboloid (507) are incomplete single-leaf hyperboloids connected by the same circle at the origin, so that the connection between the two geometric figures is continuous, that is, the inlet hyperboloid (506) and the outlet hyperboloid (507) together form a geometric figure with continuous axial rotational symmetry.

2. The wind wall according to claim 1, wherein: The adjacent outer portion (404) and the wind unit share the same mirror symmetry plane and plane symmetry axis or axis symmetry axis; wherein a cross section perpendicular to the axial axis of the wind unit shows adjacent outer portions (404) having the same geometry along their entire axis of symmetry; Wherein, the geometric figure corresponds to the cylindrical bottom of the adjacent outer portion (404), and the geometric figure can be a polygonal shape, a conical section shape, a wave shape or a teardrop shape.

3. The wind wall according to claim 1, wherein: The inner aerodynamic chamber (501) and the wind unit share the same mirror symmetry plane and plane symmetry axis or axis symmetry axis.

4. The wind wall according to claim 3, wherein: The internal aerodynamic chamber (501) includes a pressure generating space (503) arranged in the same direction as the wind direction, a critical space (504), a neck (405) of the wind unit, and a turbulence suppression space (505); The pressure generating space (503) is located between the area of ​​the air inlet (406) and the critical space (504), and the pressure generating space (503) is a space that bears the maximum drag force and presents the highest level of pressure; wherein the critical space (504) is located between the pressure generating space (503) and the turbulence suppressing space (505), the critical space (504) is a space with the lowest pressure level and the highest wind speed, and the neck (405) of the wind unit is located in the critical space (504); furthermore, the critical space (504) is a region suitable for arranging a rotor of a wind turbine; The turbulence suppression space (505) is located between the critical space (504) and the area of ​​the air outlet (407), and the turbulence suppression space (505) is a space where wind pressure and wind speed begin to be normalized with respect to the surrounding environment.

5. The wind wall according to claim 1, wherein: The outer curved blade profile comprises: a leading edge adjacent to and arranged vertically with the air inlet (406); and a trailing edge adjacent to and arranged vertically with the air outlet (407); wherein the neck (405) of the wind unit has a circular geometric shape or any other geometric shape other than a circle, as long as the geometric angles of the shape are rounded and the axis of axial symmetry of the internal aerodynamic chamber (501) can be converted into a plane symmetry axis; The air outlet (407) and the air inlet (406) of the wind unit have any one of the following shapes: (i) a circle; (ii) the same geometric shape of the neck (405) of the wind unit when it is different from a circle; or (iii) the same geometric shape of the cylindrical bottom of the adjacent outer part (404), and the geometric angles thereof are smooth.

6. The wind wall according to claim 1, wherein: The distance between the adjacent outer portion (404) and the aerodynamic profile of the inner aerodynamic chamber (501) is variable over the entire span of the wind unit, with the maximum distance being at the height of the neck (405) of the wind unit.

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