38 results about "Wind simulation" patented technology

The application improves a variable frequency fan natural wind simulation method based on algorithm control, solves the problems of current variable frequency fan natural wind simulation, such as non-complete randomness, existence of partial periodicity and still predictable, large random error, and thus reduces user experience, the method comprises the following steps: determining a natural wind basic wind speed; selecting a certain segment of simulated natural wind duration length; selecting a pulse wind speed reference value, calculating a pulse wind speed; judging and calculating the simulated natural wind speed in this segment of time; judging whether to return to the step according to the relationship between the control duration and the selected simulated natural wind duration, the application uses a single-chip microcomputer to control the fan speed, uses an algorithm to simulate the natural wind, changes the fan speed through continuous circulation and reciprocation to realize the simulation of the natural wind, simultaneously applies a first-order low-pass filter, the speed change is more smooth, and the service life of the machine body is also protected, and the application has the advantages of intelligence, high efficiency, and strengthened user comfort, etc.

The invention relates to the technical field of wind tunnel tests, and discloses a gust simulation device. The gust simulation device comprises a base and further comprises a wind tunnel flow channel, the two sides of the wind tunnel flow channel are installed at the upper end of the base through supporting devices, a driving assembly for adjusting the pitching angle of the wind tunnel flow channel is arranged on one supporting device, the direction of an air outlet of the wind tunnel flow channel is adjusted in the Y-axis direction, and gust in different directions is simulated. According to the technical scheme, the posture of the wind tunnel can be rapidly and automatically adjusted and switched, manual disassembly, assembly and debugging are not needed, different gust forms can be achieved, the experiment time can be greatly saved, and the experiment efficiency is improved. When the aircraft flies across the air port of the gust simulation device, the aircraft can fly in the gust environment, so that the test of the flight performance, the gust load and the like in the gust environment can be completed.

The application discloses a land full-scale diesel engine exhaust spraying test system, which comprises a flue gas generating device, an exhaust pipe, a spraying cooling system, a side simulation structure, a sailing wind simulation device, a waste water collecting pool and a monitoring mechanism; the flue gas generating device comprises a same type diesel engine as actually used by a ship; the exhaust pipe is arranged according to the actual exhaust pipeline of the ship; the exhaust spraying device of the spraying cooling system is arranged on the straight pipe of the exhaust pipe; the side simulation structure is arranged at the exhaust port of the exhaust pipe; the sailing wind simulation device is arranged at the side of the exhaust port of the exhaust pipe; the waste water collecting pool is arranged below the exhaust port of the exhaust pipe; the data control box of the monitoring mechanism receives the data of temperature sensors, pressure sensors and flow meters and transmits the data to an upper computer; and according to the received data, the spraying cooling system is controlled to work. The application can accurately simulate the exhaust working condition of the diesel engine of the ship and obtain accurate exhaust spraying effect data.

The invention discloses an adjacent tunnel fluid channeling ratio simulation test device and method combined with boundary conditions, the adjacent tunnel fluid channeling ratio simulation test device combined with the boundary conditions comprises an upstream tunnel model, a downstream tunnel model and a middle section road surface, and the side surface of the middle section road surface is provided with a crosswind simulation mechanism. And a full-spectrum lamp is arranged above the middle section of the road surface. The invention further relates to an adjacent tunnel fluid channeling ratio simulation test method in combination with the boundary conditions. According to the method, the sulfur hexafluoride (SF6) concentration is used as a basis for quantitatively calculating the fluid channeling ratio, fluid channeling analysis of traffic pollutants and high-temperature fire smoke can be combined, and a more accurate adjacent tunnel pollutant fluid channeling ratio is obtained by combining terrain wind environment boundary conditions and pavement thermal environment boundary conditions; and more reliable experimental data is provided for the design of adjacent tunnels and the type selection of ventilation and fire fighting equipment.

The invention discloses an offshore single-pile fan hydraulic physical model system and a simulation method thereof, and solves the problems that the existing numerical simulation boundary conditions are simplified too much, and a small-scale physical model test is difficult to meet a dynamic similarity criterion, so that simulation distortion is serious. The invention designs and establishes a large-scale offshore single-pile fan hydraulic physical model system. The model integrates a sea wind simulation device, a wave simulation device, an ocean current simulation device and a fan vibration simulation device. Single-load and multi-load coupling tests are respectively carried out, vibration acceleration data are acquired by utilizing a sensor array arranged along the height of the tower drum, and high-precision fitting is carried out on the distribution rule of the vibration acceleration along the height by adopting a quadratic polynomial, so that the vibration characteristics of the tower drum under the action of different loads are systematically revealed; and reliable test data support is provided for safety design and fatigue analysis of the offshore single-pile type fan supporting structure.

The invention belongs to the technical field of unmanned aerial vehicle testing, and particularly relates to unmanned aerial vehicle wind resistance simulation equipment. Comprising a testing mechanism; the testing mechanism comprises a top frame and a bottom frame; the top frame and the bottom frame are fixed through two stand columns. First mounting frames are uniformly arranged between the two stand columns on the same side; first fans which are uniformly arranged are mounted in the first mounting frame; an arc plate is mounted on the left side of the stand column on the left side; second mounting frames are uniformly arranged between the two arc plates; second fans which are uniformly arranged are mounted in the second mounting frame; a platform is arranged in the middle of the bottom frame, and an unmanned aerial vehicle needing to be tested is placed on the platform; an electric push rod is mounted at the bottom of the platform, and the other side of the electric push rod is mounted at the top of the rail intelligent trolley; by arranging the testing mechanism, all-working-condition scenes such as route cruise, maneuvering flight, crosswind, headwind and downwind all-directional flight and the like in the real operation process of the unmanned aerial vehicle can be completely covered.

The utility model discloses detection equipment for quick-drying heat dissipation fabric, which comprises a detection frame, water spraying simulation devices are mounted on the upper side and the lower side of the detection frame, and a heat dissipation fabric pressing device is mounted at the lower end of the detection frame. According to the utility model, the heat dissipation fabric is pressed and fixed by installing the heat dissipation fabric pressing device, and the heat dissipation fabric is further pressed by the first semicircular raised lines and the second semicircular raised lines which are arranged up and down and staggered, so that the heat dissipation fabric is prevented from being pulled down due to the gravity of water during water spray detection; the wetting condition of the heat dissipation fabric in rainy days is simulated through water sprayed by the water spray nozzles and air blown out by the fan, the humidity of the heat dissipation fabric is recorded according to time changes, the heat dissipation fabric is dried through the additionally-arranged hot-air blower, the height of the hot-air blower is changed by adjusting the air cylinder, and then the temperature change is changed. And the drying condition of the heat dissipation fabric is recorded according to different temperatures.

This utility model discloses an automotive rubber strip sealing test device, relating to the field of rubber strip testing technology. It includes a base, a simulation box fixed to the top of the base, a test box fixedly inserted to the back of the simulation box, a simulated inner door panel block fixed to the open side of the test box, and a simulated outer door panel block hinged to the simulated inner door panel block. Both the simulated inner and outer door panel blocks are located inside the simulation box. A blower simulation component and a water spray simulation component are installed on the base. The blower simulation component, in conjunction with the water spray simulation component, simulates natural weather conditions. The sealing performance of the rubber strips installed on the simulated inner and outer door panel blocks is tested using wind and water. By observing whether the fabric strips inside the test box sway and whether water accumulates inside the test box, the sealing performance of the automotive rubber strips can be accurately and effectively determined, meeting the requirements for standardized testing of automotive rubber strips.

The invention provides a modular rotating water tank typhoon simulation system based on a similarity law, and the system comprises a basic rotating platform, a driving assembly of which drives a horizontal platform surface provided with a transparent water tank to rotate, so as to provide a Coriolis force background field; an inclined bottom plate with an adjustable inclination angle and a three-dimensional terrain model fixed on the inclined bottom plate are used for simulating a terrain effect; the vortex generation module is mounted through a detachable interface, comprises a stirring type vortex generation module, a suction type vortex generation module and a double-vortex generation module, and is used for generating controllable cyclone type vortexes; and the data acquisition control module is used for system control and experimental data recording. A controllable Coriolis force background field is provided through the basic rotating platform, and a reliable hardware basis is provided for application of the dynamic similarity law through physical cooperation of the terrain simulation module and the replaceable vortex generation module, so that a parameter design process based on the theoretical similarity law can be accurately executed in an entity system, and the design efficiency is improved. Therefore, the experiment can consider both simulation precision and operation efficiency.

The invention relates to the technical field of deep ground space air volume adjustment, in particular to a deep ground space variable air volume natural wind simulation system based on infrared thermal imaging and a control method thereof.The system comprises an infrared thermal imaging sensing module used for monitoring heat distribution in a deep ground space in real time; the control module comprises a data processing unit; the trajectory prediction unit is used for predicting a personnel moving trajectory based on a neural network algorithm and calculating expected personnel intensity distribution; the regulation and control unit is used for carrying out region classification according to a heat source identification result and a personnel intensity prediction result, and calculating air quantity demanded quantity for different regions; the variable-frequency fan module is used for outputting corresponding air volume according to the control instruction of the regulation and control unit; the air supply outlet is used for achieving directional air supply. The thermal imaging data are converted into the control signals of the air volume and the air direction of the air port, dynamic adjustment and accurate response of the air supply strategy are achieved, and the adaptability and the adjustment accuracy of the system to the complex thermal environment are remarkably improved.

The invention discloses an XR somatosensory large-space grid platform combined control device and method. The device is composed of a dynamic platform module, a driving control module, a central control module, a multi-sensory simulation system and a VR linkage module. The core characteristic is that a traditional large-area fixed partition plate is replaced by a grid system composed of at least two independent flat platforms. Each platform is provided with an independent servo drive and can shake, lift and vibrate. The multi-sensory system integrates water spraying, smell, temperature and wind power simulation. After a game instruction is received, a four-step control process of mode selection, parameter configuration, synchronous execution and feedback regulation is implemented. The system supports a'full sense mode '(enabling all dynamic and sensory simulations) and a'common mode' (providing a basic load bearing function as a static platform). The platform combination scheme supports multiple forms such as a single platform, double platforms and four platforms, and flexible switching is achieved through software parameters.

The application discloses a refrigeration equipment, and belongs to the refrigeration equipment field. The refrigeration equipment comprises a main fan, a main air duct arranged between the main fan and a main air outlet of the refrigeration equipment, a first air deflector arranged at the main air outlet, an auxiliary air duct communicated between the main air duct and an auxiliary air outlet, an auxiliary fan arranged in the auxiliary air duct, an indoor temperature sensor used for acquiring an ambient temperature of an environment where the refrigeration equipment is located when the refrigeration equipment is turned on, and a controller used for adjusting at least one of a rotating speed of the main fan and an opening angle of the first air deflector based on at least one of the ambient temperature and an input of a user, and used for adjusting an opening and closing state of the auxiliary fan. The refrigeration equipment can provide additional circulating air volume by improving the negative pressure of the air outlet, thereby improving the temperature uniformity, and can realize the natural wind simulation and improve the user comfort and experience by changing the air field of the refrigeration equipment based on the auxiliary air duct.

This invention relates to the field of testing equipment technology, specifically to a stainless steel corrosion performance testing equipment for a full-zone simulated seawater environment. The equipment includes: a test chamber, which is vertically arranged along the interior of the chamber via multiple partitions, sequentially from top to bottom, comprising an atmospheric test zone, a splash test zone, a tidal range test zone, a full immersion test zone, and a sea mud test zone; and a simulation unit, including a sea breeze simulation component and a wave simulation component respectively connected and installed on the side wall of the test chamber, for providing a simulated seawater environment. By separately setting the atmospheric test zone, splash test zone, tidal range test zone, full immersion test zone, and sea mud test zone inside the test chamber, the equipment can work with the sea breeze simulation component and the wave simulation component to simulate a full-zone seawater environment. This allows for convenient testing of the corrosion resistance of stainless steel pipes in different zones of a simulated real marine environment, improving the accuracy of the test, reducing the manpower and material resources consumed in the test, and reducing the workload of the personnel involved in the test.

The invention discloses a testing device and method for simulating coupling ignition of forest fire heat radiation and flying fire particles in a boundary region to ignite liquid fuel. Comprising a flying fire particle simulation system, a heating sheet loading system, a heat radiation generation system, a fuel pool loading system, an environmental wind simulation system, a water bath heating / cooling system, a thermal characteristic parameter measurement system, an image data measurement system, a high-speed infrared measurement system and the like. According to the method, the physical process of igniting the combustible liquid by coupling the flying fire particles and thermal radiation in the forest-town boundary fire can be accurately reproduced; the dynamic characteristics, including critical evaporation rate and ignition heat flow of liquid fuel under the coupling action of different flying fire particles and thermal radiation, and ignition delay time, ignition temperature and other key parameters when the ignition heat flow is greater than a critical threshold value, of the combustible liquid storage tank in a boundary region can be quantitatively studied; and basic data support is provided for risk assessment and prevention and control strategies of the forest fire ignition liquid storage tank in the boundary region.

The utility model relates to the technical field of automobile display stands, and provides an automobile display stand. The automobile display stand comprises an exhibition stand body, an adjusting mechanism and a wind simulation mechanism, the rear end face of the exhibition stand body is connected with the adjusting mechanism, the adjusting mechanism comprises an adjusting block, a servo motor, a lead screw and a sliding block, the rear end face of the exhibition stand body is connected with the adjusting block, a sliding groove is formed in the front end face of the adjusting block, and the servo motor is installed on the upper surface of the adjusting block. The output end of the servo motor penetrates through the upper surface of the adjusting block and is fixedly connected with a lead screw through a coupler, the lower end of the lead screw is rotationally connected with the lower surface of the sliding groove, and the adjusting mechanism is connected with a wind simulation mechanism. According to the automobile display stand provided by the utility model, through the arranged wind simulation mechanism, wind feeling experience can be provided for audiences through blowing to an automobile and airflow, and wind catching experience in driving can be simulated, so that the audiences can experience charm of the automobile from a more vivid and three-dimensional angle, and the display effect of the automobile is improved.

A system for simulating wind motion cues in a vehicle simulator comprises comprises a wind generation system 140 and a simulation controller 150. The wind generation system is configured to dynamicall

The application discloses a kind of transmission line wind and rain load test device and method, including wind tunnel, the inside of the wind tunnel is provided with line simulation unit and rainfall simulation unit, the outside of the wind tunnel is provided with strong wind simulation unit and control unit;The line simulation unit includes suspension unit, and sensor unit and telescopic steel plate connected with the suspension unit;The rainfall simulation unit includes rain shower, and first servo motor connected with the rain shower;The strong wind simulation unit includes air duct, and fan arranged in the air duct;The control unit includes main control unit, and signal receiving unit connected with the main control unit.The application provides the simulation wind and rain load test conversion method and intelligent test device for 110kV transmission line, not only make the accuracy of simulation test higher, simultaneously, the simultaneous control of field and remote can also be realized, further improve the automation degree of test device.

1. The name of the design product: wind energy simulator. 2. The use of the design product: the design product as a variable pitch system module in the wind turbine practical training platform, plays a role in wind simulation. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention provides an experimental device and method for simulating spreading combustion of combustible liquid on the surface of a frozen soil medium, and relates to the technical field of fire safety. An experiment platform; a refrigeration assembly; a ventilation assembly; and a data acquisition system. The device has the beneficial effects that the refrigeration assembly directly prepares a frozen soil medium in the experiment disc to simulate a low-temperature environment, the fuel leakage simulation assembly directly leaks on the surface of the frozen soil medium through the leakage spray pipe to spread, and pipeline leakage in frozen soil can also be simulated through leakage of the buried spray pipe arranged in the experiment disc; the ignition device carries out heating ignition at a designated position, the ventilation assembly blows air to simulate a windy environment, the thermocouple array analyzes the change characteristics of a temperature field, and the thermal infrared imager analyzes the heat transfer condition. The device has the functions of repeatedly simulating the spreading, combustion and spreading of combustible liquid on the surface of a frozen soil medium and changing the environment wind speed, the spreading mode of the combustible liquid and the flow velocity of liquid fuel.

The invention discloses an aero-engine air inlet distortion simulation device, and relates to the technical field of engine air inlet distortion simulation devices.The aero-engine air inlet distortion simulation device comprises an air duct and multiple sets of fan blades arranged in the air duct, a base ring is arranged in the air duct, the multiple sets of fan blades are located at the horizontal left side position of the base ring, and the base ring is provided with a speed pressing mechanism for adjusting the horizontal right side air speed of the base ring; the rapid pressing mechanism comprises a rotating assembly used for driving the base ring to freely rotate in the vertical direction, four groups of wind passing areas which are annularly symmetrical from the axis and are distributed in a divergent mode are arranged on the base ring, and wind adjusting assemblies used for adjusting the wind speeds of the right sides of the four groups of wind passing areas correspondingly are arranged on the base ring; according to the invention, by arranging the speed pressing mechanism, the purpose of adjusting and simulating the airflow speed at different positions of an engine air inlet channel can be achieved by independently controlling the rotating speed of a single set of fan blades and the independent adjusting process of the air outlet speed of four groups of air passing areas, and meanwhile, the response speed of the gust simulation process is further improved; the simulation experiment efficiency is improved.

This application relates to the field of door and window testing. It discloses a physical testing device for doors and windows, comprising a testing chamber, a retaining box, a wind simulation device, and a rain simulation device. The testing chamber and the retaining box are connected by a guide mechanism. A simulated testing cavity is formed within the testing chamber. The wind simulation device is installed on the side of the testing chamber away from the retaining box and is used to test the airtightness of the specimen within the simulated testing cavity. The rain simulation device is installed on one side of the testing chamber and is used to test the watertightness of the specimen within the simulated testing cavity. A reinforcement device for securing the specimen is installed within the simulated testing cavity, and a positioning mechanism for detecting changes in the specimen's position within the simulated testing cavity is mounted on the reinforcement device. This application offers the advantages of efficient and accurate airtightness and watertightness testing of door and window specimens, clear detection of specimen position changes, stable device connection, and ease of operation.

The utility model discloses a high-simulation kart simulator with an environmental effect simulation function, which comprises a simulation chamber, a kart simulator body, a kart simulator body, a kart simulator body and a kart simulator body. The driving simulator is arranged in the simulation chamber; a steering wheel angular velocity sensor and an accelerator and brake pedal sensor are mounted in the driving simulator; the road scene simulator is mounted on the other side surface of the simulation chamber; the interior of the storage box is fixedly connected with a partition plate, the partition plate divides the interior of the storage box into a sand storage interval and a water storage interval, a sand and dust simulation assembly, a fog simulation assembly and a rain simulation assembly are installed on the top in the simulation chamber, the sand and dust simulation assembly is communicated with the sand storage interval, and the fog simulation assembly and the rain simulation assembly are both communicated with the water storage interval; the wind simulation system comprises a wind supply assembly and a wind direction adjusting assembly; a road condition feedback support is installed in the simulation chamber. According to the utility model, different environment information can be simulated through the arrangement of various simulation assemblies, and the richness and authenticity of a simulation scene are improved.

The invention discloses a driver emotion adjusting method based on an SOA framework. The driver emotion adjusting method comprises the steps that a driver emotion adjusting function switch is turned on; identifying whether the emotion of the driver is impatient; and if yes, providing a plurality of atomic services and a combined service formed by combining a plurality of atomic services by utilizing the cabin domain controller and the central control unit so as to adjust the emotion of the driver. According to the driver emotion adjusting method based on the SOA architecture, the driver emotion adjusting mode of re-recognition and light adjustment is improved, the driver emotion is emphasized to be adjusted through actions of family member reminding, oxygen release, natural wind simulation, aromatherapy, atmosphere lamp simulation and the like, and therefore harm caused by bad emotion to road traffic is effectively reduced; considering the influence of some natural scenes on human emotion and the influence of the naive emotion of the human on the emotion from the natural mood of the human; and the SOA technology is adopted, so that software and hardware decoupling and function expansion and upgrade are facilitated.

The utility model relates to the technical field of automobile air conditioning systems, in particular to a natural wind simulation double-channel automobile electric air outlet device. Comprising an outer shell lower cover, an outer shell upper cover, an inner shell lower cover, a lower channel blade, a driving shaft, an adjusting shaft, a synchronous driving shaft, a flow guide plate, an air door, a driving plate actuator, a synchronous driving gear, a rack plate, a blade driving plate, a lower driving groove set, an upper driving groove set, an inner shell upper cover, an upper channel blade set, a flow guide plate driving actuator and a driving disc. By designing a double-channel structure of the upper channel blade group and the lower channel blade group, the upper channel blade group and the lower channel blade group can be linked to move at different angles under the driving of the blade driving plate, so that the airflow of the upper channel and the airflow of the lower channel can be mixed in any form, the diffusion effect of the flowing-out airflow is realized, the turbulence intensity is increased, and the airflow is prevented from being directly blown to a human body; the problems of uncomfortable body feeling such as dryness and uneven cold and hot caused by direct blowing of a traditional air outlet are solved.

The application provides a sequence-to-sequence multi-step flood forecasting method and device based on space-time attention, and adds a space attention model to an input item and adds a time attention model to a deep learning framework. The space attention model can sufficiently learn the spatial distribution information of rainfall, and has a good effect in a small-flow typhoon simulation, and the time attention model can strengthen the learning of a rapid confluence process, and has a good effect in a large-flow typhoon simulation. In the application of the GRU-Seq2Seq model added with the space-time attention mechanism, it can be found that the model can effectively learn different types of floods, and effectively solve the time lag phenomenon in the mountain small watershed forecasting and the problem of low flood peak forecasting precision.

The application is suitable for the technical field of wind dynamics simulation, and provides a diffusion model framework construction method based on wind simulation and building performance evaluation, which comprises the following steps: obtaining multiple multi-angle wind field data information, then generating wind simulation data set information according to the multiple multi-angle wind field data information, and finally training a preset multi-angle diffusion model based on the wind simulation data set information to effectively generate target wind simulation model information. The application can provide a simplified solution for rapid wind field simulation and building performance evaluation, realize the prediction of multi-angle wind dynamics in a high-density urban environment, enable designers and planners to seamlessly integrate wind field analysis into the early stage of design exploration, realize a more dynamic evaluation process, greatly reduce the time and computing workload required for performance-driven decision-making, and significantly improve reliability.

The present application relates to the technical field of photovoltaics, and specifically relates to a solar photovoltaic panel environment simulation system and a simulation method. The system comprises an environment simulation module, an environment regulation module, and an electronic control module. The environment simulation module comprises an environment simulation box and a photovoltaic positioning unit; the environment regulation module comprises a unit box, a natural wind simulation unit, a temperature simulation unit, and a drying simulation unit; an air duct is provided in the unit box; the electronic control module comprises an electronic control box, a refrigeration unit, a humidity simulation unit, and a main control unit; and the environment simulation box, the unit box, and the electronic control box are assembled in a split manner. By controlling the natural wind simulation unit, the temperature simulation unit, the drying simulation unit and the refrigeration unit, the present application comprehensively evaluates the performance of a photovoltaic panel in various practical application environments, and can quickly set and change environmental conditions, thereby improving the test efficiency.

The invention discloses an unmanned aerial vehicle hangar capable of automatically landing based on machine vision, and relates to the field of unmanned aerial vehicle storage devices. An unmanned aerial vehicle hangar capable of automatically landing based on machine vision comprises a hangar shell and an unmanned aerial vehicle, the unmanned aerial vehicle is provided with a machine vision system, and positioning, navigation, posture adjustment and precise landing are autonomously completed by sensing and recognizing surrounding environment characteristics in real time; through cooperation of the automatic conveying assembly, strong wind simulation and identification code positioning, efficient detection of the strong wind stability of the unmanned aerial vehicle, automatic standby replacement of the unqualified unmanned aerial vehicle and full-process datamation recording are achieved, the detection accuracy and efficiency are improved, errors and delay of manual operation are avoided, and the detection efficiency is improved. Meanwhile, accurate management of the unmanned aerial vehicle is guaranteed, the risk that the unqualified unmanned aerial vehicle participates in performance is effectively reduced, and light performance is helped to be carried out safely and smoothly.

The application provides a physical device for simulating the influence of a wind field in a model test of ocean engineering, and relates to the technical field of ocean engineering. The physical device comprises two first electric sliding rails and a central processing center. The action point of the wind force is adjusted through the central processing center, so that the known wind field action can be simulated very accurately, the wind field action is combined with the ocean environment condition more easily, the action wind in the simulated wind field mechanism is simulated and tracked separately, the additional mass of the floating body model is removed, the action of the wind with a changing direction on the floating body model is simulated by a regulation module, the ocean simulated floating body model can perform random drift movement in a large range and is tracked in real time, the error of the additional mass of the simulated floating body model in subsequent calculation is effectively reduced, the wind and the wave in the ocean environment are simulated, the simulation simulation of the ocean environment is improved, the result reliability of the model test is improved, and the operation complexity and the huge energy consumption of the traditional fan array mode for simulating the wind field are solved.

The invention relates to the field of tornado simulation, and discloses a method for constructing a tornado CFD simulation model, which comprises the following steps of: constructing a tornado numerical wind tunnel model which comprises a plurality of rotational flow fans; setting the type and parameters of a target tornado, and calculating a three-dimensional velocity field of the target tornado by combining Rankine with a vortex model so as to construct a wind field of the target tornado; converting a target tornado wind field into a function which can be identified by CFD software through a field function, and mapping the function into parameters of the numerical wind tunnel model, so that the boundary speed of the rotational flow fan is matched with the calculated three-dimensional speed field; a three-dimensional closed fluid domain is constructed, grid division is carried out on the closed fluid domain, and differential grid configuration is implemented; configuring simulation parameters, and solving to obtain a target tornado three-dimensional velocity field simulation result; the reality sense and the flexibility of wind field simulation are effectively improved, and meanwhile, the simulation precision and the calculation efficiency are considered.