Method and device for determining emission height of plume, electronic equipment and storage medium

Abstract

The invention relates to the field of ocean engineering, and provides a plume emission height determination method and device, electronic equipment and a storage medium, the method is applied to a target area, and the target area comprises a to-be-emitted plume; the method comprises the following steps: acquiring an attribute parameter of a target area and a discharge parameter of a plume to be discharged; determining the plume type of the to-be-discharged plume as a first plume type or a second plume type based on the attribute parameter of the target area and the discharge parameter of the to-be-discharged plume; based on a determination result that the plume type of the to-be-discharged plume is the first plume type or the second plume type, obtaining a first discharge height for the to-be-discharged plume; and based on the first emission height, the attribute parameter of the target area and the emission parameter of the to-be-emitted plume, obtaining a target emission height of the to-be-emitted plume. The discharge height of the plume to be discharged can be accurately determined, so that it is guaranteed that the plume can be captured by an anoxic layer of seawater, and the problem of ocean hypoxia is solved.

Description

Technical Field

[0001] The present application relates to the field of marine engineering, and in particular to a method, device, electronic equipment and storage medium for determining the emission height of a plume. Background Art

[0002] Low oxygen in the ocean will destroy biological habitats, causing mass deaths of organisms and changing the structure of the marine food chain, which will disrupt the balance of the global carbon cycle, accelerate the release of greenhouse gases from seawater, and thus change the global climate and worsen the earth's ecological environment.

[0003] Artificial downwelling technology is a new marine artificial system technology that imitates the downward movement of surface seawater in nature to supplement the dissolved oxygen concentration in the bottom layer, which can effectively alleviate marine hypoxia. In related technologies, artificial downwelling technology is usually combined with tidal energy oxygenation devices to discharge plumes into the hypoxic layer of the ocean to alleviate hypoxia. However, due to the ever-changing horizontal tides, the low density of the plume and the horizontal cross-current cannot guarantee that the upper plume will be captured by the hypoxic layer. Therefore, how to ensure that the downwardly discharged plume can be effectively captured by the hypoxic layer has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] The present application provides a method, device, electronic device and storage medium for determining the emission height of a plume, so as to at least solve the above technical problems existing in the prior art.

[0005] According to a first aspect of the present application, a method for determining the emission height of a plume is provided, the method being applied to a target area, the target area including the plume to be emitted; the method comprising: Obtaining attribute parameters of the target area and emission parameters of the plume to be emitted; Determining, based on the attribute parameters of the target area and the emission parameters of the plume to be emitted, that the plume type of the plume to be emitted is the first plume type or the second plume type; Based on a determination result that the plume type of the to-be-emitted plume is the first plume type or the second plume type, obtaining a first discharge height for the to-be-emitted plume; A target discharge height of the plume to be discharged is obtained based on the first discharge height, the attribute parameters of the target area and the discharge parameters of the plume to be discharged.

[0006] In one embodiment, determining the plume type of the to-be-emitted plume as the first plume type or the second plume type based on the attribute parameters of the target area and the emission parameters of the to-be-emitted plume includes: Based on the attribute parameters of the target area and the emission parameters of the plume to be emitted, a target emission velocity of the plume to be emitted is obtained; Based on the target emission velocity and emission parameters of the plume to be emitted, a first initial flux and a second initial flux of the plume to be emitted are obtained; Obtaining a third initial flux of the plume to be discharged based on the first initial flux of the plume to be discharged, the property parameter of the target area, and the discharge parameter of the plume to be discharged; Based on the second initial flux and the third initial flux, the plume type of the to-be-emitted plume is determined to be the first plume type or the second plume type.

[0007] In one embodiment, the target area further includes a horizontal crossflow, and the attribute parameters of the target area include a flow velocity for the horizontal crossflow; and determining, based on the second initial flux and the third initial flux, that the plume type of the to-be-emitted plume is the first plume type or the second plume type comprises: Based on a second initial flux of the to-be-emitted plume and a flow velocity for the horizontal cross flow, a first characteristic length for the horizontal cross flow is obtained; Based on the third initial flux of the to-be-emitted plume and the flow velocity for the horizontal cross flow, a second characteristic length for the horizontal cross flow is obtained; Based on the attribute parameters of the target area, a target frequency for the plume to be discharged is obtained; A third characteristic length for the horizontal cross flow is obtained based on a target frequency for the plume to be discharged and a flow velocity for the horizontal cross flow; Based on the first characteristic length, the second characteristic length, and the third characteristic length for the horizontal cross flow, the plume type of the to-be-emitted plume is determined to be the first plume type or the second plume type.

[0008] In one embodiment, the step of determining the plume type of the to-be-emitted plume as the first plume type or the second plume type based on the first characteristic length, the second characteristic length, and the third characteristic length for the horizontal crossflow includes: Obtaining a first reference value for the plume type of the to-be-emitted plume based on the product of the second characteristic length and the third characteristic length for the horizontal cross flow and the first preset value; Based on the first characteristic length for the horizontal cross flow and the second preset value, a second reference value for the plume type of the to-be-emitted plume is obtained; When the first reference value is less than the second reference value, the plume type of the to-be-emitted plume is the first plume type; When the first reference value is greater than or equal to the second reference value, the plume type of the to-be-emitted plume is the second plume type.

[0009] In one embodiment, the step of obtaining a first discharge height for the to-be-discharged plume based on a determination result that the plume type of the to-be-discharged plume is the first plume type or the second plume type comprises: When the plume type of the to-be-emitted plume is the first plume type, obtaining a first emission height for the to-be-emitted plume based on the attribute parameters of the target area, the emission parameters of the to-be-emitted plume, and the first determination relationship; When the plume type of the to-be-emitted plume is the second plume type, a first discharge height for the to-be-emitted plume is obtained based on the attribute parameters of the target area, the discharge parameters of the to-be-emitted plume and the second determination relationship.

[0010] In one embodiment, the target area includes an emission layer for the plume to be emitted; the attribute parameters of the target area include a thickness of the emission layer and an initial emission height for the plume to be emitted; and obtaining a target emission height of the plume to be emitted based on the first emission height, the attribute parameters of the target area and the emission parameters of the plume to be emitted comprises: When the first discharge height is less than the difference between the initial discharge height and the thickness of the discharge layer, a target discharge height of the to-be-discharged plume is obtained based on a first preset target step length; the target discharge height of the to-be-discharged plume is less than the initial discharge height; When the first discharge height is greater than the initial discharge height, a target discharge height of the plume to be discharged is obtained based on a second preset target step length; the target discharge height of the plume to be discharged is greater than the initial discharge height.

[0011] In one possible implementation, it further includes: When the first discharge height is greater than the difference between the initial discharge height and the thickness of the discharge layer, and the first discharge height is less than the initial discharge height, the target discharge height of the to-be-discharged plume is equal to the initial discharge height.

[0012] According to a second aspect of the present application, a device for determining the discharge height of a plume is provided, the device being applied to a target area, the target area including the plume to be discharged; the device comprising: A first acquisition unit is used to acquire attribute parameters of the target area and emission parameters of the plume to be emitted; a first determining unit, configured to determine, based on the attribute parameters of the target area and the emission parameters of the plume to be emitted, whether the plume type of the plume to be emitted is the first plume type or the second plume type; A second acquisition unit, configured to obtain a first discharge height for the to-be-discharged plume based on a determination result that the plume type of the to-be-discharged plume is the first plume type or the second plume type; The third acquisition unit is used to obtain a target emission height of the plume to be emitted based on the first emission height, the attribute parameters of the target area and the emission parameters of the plume to be emitted.

[0013] According to a third aspect of the present application, an electronic device is provided, including: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method described in the present application.

[0014] According to a fourth aspect of the present application, a non-transitory computer-readable storage medium storing computer instructions is provided, wherein the computer instructions are used to enable a computer to execute the method described in the present application.

[0015] In the present application, the attribute parameters of the target area and the emission parameters of the plume to be discharged are obtained; based on the attribute parameters of the target area and the emission parameters of the plume to be discharged, the plume type of the plume to be discharged is determined to be the first plume type or the second plume type; based on the determination result that the plume type of the plume to be discharged is the first plume type or the second plume type, the first discharge height for the plume to be discharged is obtained; based on the first discharge height, the attribute parameters of the target area and the emission parameters of the plume to be discharged, the target discharge height of the plume to be discharged is obtained. The discharge height of the plume to be discharged can be accurately determined, thereby ensuring that the plume can be captured by the anoxic layer of the seawater, thereby alleviating the problem of hypoxia in the ocean.

[0016] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become readily understood. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, wherein: In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0018] Figure 1 A schematic diagram of the implementation process of the method for determining the emission height of a plume according to an embodiment of the present application is shown; Figure 2 A scene diagram of plume emission in an embodiment of the present application is shown; Figure 3 A schematic diagram showing the composition and structure of a device for determining the discharge height of a plume according to an embodiment of the present application is shown; Figure 4 A schematic diagram of the structure of an electronic device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0019] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0020] In the embodiment of the present application, the target area is an ocean area, which is a linear stratified water body including multiple layers, wherein the bottom layer is an anoxic layer. The plume to be discharged is a plume to be discharged from the surface layer of the ocean to the bottom layer to alleviate the hypoxia of the anoxic layer. The plume to be discharged is discharged by means of a tidal pump type device, wherein the tidal pump type device mainly discharges the plume through a guide pipe.

[0021] The embodiment of the present application provides a method for determining the emission height of a plume, the method being applied to a target area, the target area including the plume to be emitted; Figure 1 As shown, the method includes: S101: Acquire attribute parameters of the target area and emission parameters of the plume to be emitted.

[0022] In this step, refer to Figure 2 As shown, the target area is the ocean area, including oxygen-rich surface water, horizontal cross current (flow rate) , anoxic bottom seawater (anoxic layer) and sediments at the bottom of the ocean. Usually, the dissolved oxygen concentration of anoxic bottom seawater is less than 2mg / L. In order to alleviate the hypoxia of the ocean anoxic layer, the relevant tidal pump-type device mainly discharges the oxygen-rich surface seawater with a high oxygen content into the anoxic bottom seawater through a diversion pipe (including an elbow and a downflow pipe). Specifically, the oxygen-rich plume in the oxygen-rich surface seawater enters the downflow pipe through the elbow and is discharged into the anoxic bottom seawater through the downflow pipe.

[0023] The attribute parameters of the target area are related parameters of the ocean area, including the density gradient of seawater in the ocean area, the density of the anoxic layer seawater, the thickness of the anoxic layer, the current horizontal tidal flow velocity, etc. The discharge parameters of the plume to be discharged include the radius of the guide pipe for plume discharge, the length of the guide pipe, the roughness of the inner wall of the guide pipe, the initial discharge height and discharge density of the plume to be discharged, etc. The attribute parameters of the target area and the discharge parameters of the plume to be discharged can be obtained by measurement.

[0024] S102: Based on the attribute parameters of the target area and the emission parameters of the to-be-emitted plume, determine whether the plume type of the to-be-emitted plume is the first plume type or the second plume type.

[0025] In this step, the plume to be discharged includes two types: the first plume type and the second plume type. Among them, the first plume type is a momentum-dominated near-field plume, and the second plume type is a momentum-dominated far-field plume. The plume type of the plume to be discharged is determined based on the attribute parameters of the target area and the emission parameters of the plume to be discharged. For the specific process, please refer to the detailed description of the relevant parts below, which will not be repeated here.

[0026] S103: Based on the determination result that the plume type of the to-be-emitted plume is the first plume type or the second plume type, a first discharge height for the to-be-emitted plume is obtained.

[0027] In this step, the first discharge height is the maximum discharge height for the plume to be discharged, which can be used as an important reference for judging whether the artificial downwelling plume can be captured by the hypoxic layer. There are differences in the calculation methods of the first discharge height of different types of plumes to be discharged. For the specific process, please refer to the detailed description of the relevant parts below, which will not be repeated here.

[0028] S104: Obtaining a target emission height of the plume to be emitted based on the first emission height, attribute parameters of the target area, and emission parameters of the plume to be emitted.

[0029] In this step, the target emission height of the plume to be discharged is the final height of the plume discharge, which may be the same as or different from the initial emission height of the plume to be discharged in the emission parameters of the plume to be discharged. Whether the target emission height is the height adjusted based on the initial emission height of the plume to be discharged needs to be calculated and judged based on the first emission height of the plume to be discharged, the attribute parameters of the target area and the emission parameters of the plume to be discharged. For the specific process, please refer to the detailed description of the relevant parts below, which will not be repeated.

[0030] In the scheme shown in step S101 to step S104, the attribute parameters of the target area and the emission parameters of the plume to be discharged are obtained; based on the attribute parameters of the target area and the emission parameters of the plume to be discharged, the plume type of the plume to be discharged is determined to be the first plume type or the second plume type; based on the determination result that the plume type of the plume to be discharged is the first plume type or the second plume type, the first discharge height for the plume to be discharged is obtained; based on the first discharge height, the attribute parameters of the target area and the emission parameters of the plume to be discharged, the target discharge height of the plume to be discharged is obtained. The discharge height of the plume to be discharged can be accurately determined, thereby ensuring that the plume can be captured by the anoxic layer of the seawater, thereby alleviating the problem of marine hypoxia.

[0031] In an optional solution, determining the plume type of the to-be-emitted plume as the first plume type or the second plume type based on the attribute parameters of the target area and the emission parameters of the to-be-emitted plume includes: Based on the attribute parameters of the target area and the emission parameters of the plume to be emitted, a target emission velocity of the plume to be emitted is obtained; Based on the target emission velocity and emission parameters of the plume to be emitted, a first initial flux and a second initial flux of the plume to be emitted are obtained; Obtaining a third initial flux of the plume to be discharged based on the first initial flux of the plume to be discharged, the property parameter of the target area, and the discharge parameter of the plume to be discharged; Based on the second initial flux and the third initial flux, the plume type of the to-be-emitted plume is determined to be the first plume type or the second plume type.

[0032] In this application, the attribute parameters of the target area also include the dynamic viscosity of water. The emission parameters of the plume to be discharged also include the inlet height above the pipe for plume discharge, the outlet height below the pipe for plume discharge, the curvature radius of the guide pipe elbow for plume discharge, etc. Based on the attribute parameters of the target area and the emission parameters of the plume to be discharged, the target emission velocity of the plume to be discharged can be calculated by the following formula (1): Formula (1) in, w 0 is the target discharge velocity of the plume to be discharged. include ρ i and ρ 0 ,in ρ 0 is the emission density of the plume to be discharged, ρ i is the seawater density at the inlet above the (diversion) pipe. r 0 is the radius of the draft tube for plume discharge. is the horizontal tidal flow velocity. z i The height of the inlet above the pipe for plume discharge. z o The outlet height below the pipe for plume discharge. R The radius of curvature of the draft tube elbow for plume discharge. L Length of (diversion) pipe for plume discharge. δ Roughness of the inner wall of the (diversion) pipe for plume discharge. Re is the Reynolds number, Re = ρ i w 0 r 0 / μ . μ is the dynamic viscosity of water. ξt ( R , L , r 0 , δ , Re ) is the total resistance loss generated during the plume discharge process. is the acceleration due to gravity.

[0033] In the present application, the first initial flux is the initial mass flux of the plume to be discharged, and the second initial flux is the initial momentum flux of the plume to be discharged. Based on the target discharge velocity and discharge parameters of the plume to be discharged obtained by formula (1), the first initial flux and the second initial flux of the plume to be discharged can be calculated by formula (2) and formula (3): Formula (2) Formula (3) in, The discharge plume is about to be discharged (reference Figure 2 The first initial flux is shown in is the second initial flux of the plume to be discharged when it is about to be discharged. is the target discharge velocity of the plume to be discharged, r 0 is the radius of the draft tube for plume discharge.

[0034] The third initial flux of the plume to be discharged is the initial buoyancy flux of the plume to be discharged. The third initial flux of the plume to be discharged is calculated by formula (4): Formula (4) in, The discharge plume is about to be discharged (reference Figure 2 The third initial flux is shown). is the emission density of the plume to be emitted in the emission parameters of the plume to be emitted. It is the seawater density of the anoxic layer in the attribute parameters of the target area. is the first initial flux of the plume to be discharged. is the acceleration due to gravity.

[0035] Through the above formulas (1) to (4), the second initial flux and the third initial flux of the plume to be discharged can be accurately obtained, thereby providing a data basis for subsequently accurately obtaining the discharge height of the plume to be discharged.

[0036] In an optional solution, the target area further includes a horizontal cross flow, and the attribute parameters of the target area include a flow velocity for the horizontal cross flow; and determining, based on the second initial flux and the third initial flux, that the plume type of the to-be-emitted plume is the first plume type or the second plume type comprises: Based on a second initial flux of the to-be-emitted plume and a flow velocity for the horizontal cross flow, a first characteristic length for the horizontal cross flow is obtained; Based on the third initial flux of the to-be-emitted plume and the flow velocity for the horizontal cross flow, a second characteristic length for the horizontal cross flow is obtained; Based on the attribute parameters of the target area, a target frequency for the plume to be discharged is obtained; A third characteristic length for the horizontal cross flow is obtained based on a target frequency for the plume to be discharged and a flow velocity for the horizontal cross flow; Based on the first characteristic length, the second characteristic length, and the third characteristic length for the horizontal cross flow, the plume type of the to-be-emitted plume is determined to be the first plume type or the second plume type.

[0037] In this application, the first characteristic length for the horizontal crossflow is the momentum characteristic length of the current crossflow. It is calculated by formula (5): Formula (5) in, represents the first characteristic length for horizontal cross flow. is the second initial flux of the plume to be discharged. is the flow velocity for horizontal tidal current.

[0038] And, the second characteristic length for the horizontal crossflow is the buoyancy characteristic length of the current crossflow. It is calculated by formula (6): Formula (6) in, represents the second characteristic length for horizontal cross flow. is the third initial flux of the plume to be discharged.

[0039] And, the third characteristic length for horizontal cross flow is the velocity characteristic length of the current cross flow. It is calculated by formula (7) and formula (8): Formula (7) Formula (8) in, represents the third characteristic length for horizontal cross flow. is the target frequency for the plume to be discharged, specifically the Brunt-Viscera frequency. is the density gradient of seawater in the attribute parameters of the target area.

[0040] It can be understood that the horizontal crossflow effect can affect the downward discharge of the upper plume to a certain extent. Based on the above formulas (5) to (8), the three characteristic lengths of the horizontal crossflow in the target area can be easily and accurately obtained, and then the plume type of the plume to be discharged can be accurately determined, so as to more accurately ensure that the plume discharged from the upper layer can be captured by the anoxic layer.

[0041] In an optional solution, determining the plume type of the to-be-emitted plume as the first plume type or the second plume type based on the first characteristic length, the second characteristic length, and the third characteristic length for the horizontal crossflow includes: Obtaining a first reference value for the plume type of the to-be-emitted plume based on the product of the second characteristic length and the third characteristic length for the horizontal cross flow and the first preset value; Based on the first characteristic length for the horizontal cross flow and the second preset value, a second reference value for the plume type of the to-be-emitted plume is obtained; When the first reference value is less than the second reference value, the plume type of the to-be-emitted plume is the first plume type; When the first reference value is greater than or equal to the second reference value, the plume type of the to-be-emitted plume is the second plume type.

[0042] In this application, it is assumed that the second characteristic length for horizontal cross flow is , the third characteristic length for horizontal cross flow is , the first preset value is 2.8 (this value is an empirical value), and the first reference value is S. Then the first reference value can be expressed as: Formula (9) And, assuming that the first characteristic length for horizontal crossflow is , the second preset value is 1.3 (this value is an empirical value), and the second reference value is A. Then the second reference value can be expressed as: A= Formula (10) If S < A, the plume type of the plume to be discharged is the first plume type, that is, the momentum-dominated near-field plume. If S ≥ A, the plume type of the plume to be discharged is the second plume type, that is, the momentum-dominated far-field plume. The judgment of the plume type is realized, the plume mathematical model is further improved, and the accuracy of the subsequent discharge height calculation is improved.

[0043] In an optional solution, the step of obtaining a first discharge height for the to-be-discharged plume based on a determination result that the plume type of the to-be-discharged plume is the first plume type or the second plume type comprises: When the plume type of the to-be-emitted plume is the first plume type, obtaining a first emission height for the to-be-emitted plume based on the attribute parameters of the target area, the emission parameters of the to-be-emitted plume, and the first determination relationship; When the plume type of the to-be-emitted plume is the second plume type, a first discharge height for the to-be-emitted plume is obtained based on the attribute parameters of the target area, the discharge parameters of the to-be-emitted plume and the second determination relationship.

[0044] In the present application, when the plume type of the to-be-emitted plume is the first plume type, the first discharge height of the to-be-emitted plume is calculated by formula (11), i.e., the first determination relationship: Formula (11) When the plume type of the to-be-emitted plume is the second plume type, the first discharge height of the to-be-emitted plume is calculated by formula (12), i.e., the second determination relationship: Formula (12) in, It is the first discharge height of the plume to be discharged when it is about to be discharged. and The third characteristic length and the first characteristic length for the horizontal cross flow are respectively calculated based on the attribute parameters of the target area and the emission parameters of the to-be-emitted plume. This can further reduce the complexity of the calculation and improve the overall calculation speed.

[0045] In an optional solution, the target area includes an emission layer for the plume to be discharged; the attribute parameters of the target area include a thickness of the emission layer and an initial emission height for the plume to be discharged; and obtaining a target emission height of the plume to be discharged based on the first emission height, the attribute parameters of the target area and the emission parameters of the plume to be discharged comprises: When the first discharge height is less than the difference between the initial discharge height and the thickness of the discharge layer, a target discharge height of the to-be-discharged plume is obtained based on a first preset target step length; the target discharge height of the to-be-discharged plume is less than the initial discharge height; When the first discharge height is greater than the initial discharge height, a target discharge height of the plume to be discharged is obtained based on a second preset target step length; the target discharge height of the plume to be discharged is greater than the initial discharge height.

[0046] In this application, reference Figure 2 As shown, it is assumed that the first discharge height of the plume to be discharged is , the initial discharge height is , the thickness (height) of the emission (anoxia) layer is .

[0047] when , the current artificial downwelling plume cannot be discharged into the anoxic layer, and the discharge height needs to be lowered. Based on the first preset target step size (customizable), the initial discharge height is reduced to obtain the final target discharge height.

[0048] when When the current artificial downwelling plume is too strong, it will wash away the seabed sediments and cause pollution. At this time, the discharge height needs to be increased. Based on the second preset target step size (which can be customized and is the same or different from the first preset target step size), the initial discharge height is increased to obtain the final target discharge height.

[0049] In an optional solution, it also includes: When the first discharge height is greater than the difference between the initial discharge height and the thickness of the discharge layer, and the first discharge height is less than the initial discharge height, the target discharge height of the to-be-discharged plume is equal to the initial discharge height.

[0050] In this application, as mentioned above, when When the artificial downwelling plume is discharged into the anoxic layer, it will not wash away the sediments and there is no need to adjust the discharge height. That is, the target discharge height is equal to the initial discharge height. The plume to be discharged can be discharged based on the initial discharge height, thereby effectively alleviating the hypoxia problem in the anoxic layer.

[0051] The embodiment of the present application also provides a device for determining the discharge height of a plume, the device being applied to a target area, the target area including the plume to be discharged; Figure 3 As shown, the device comprises: A first acquisition unit 301 is used to acquire attribute parameters of the target area and emission parameters of the plume to be emitted; A first determining unit 302 is used to determine whether the plume type of the to-be-emitted plume is the first plume type or the second plume type based on the attribute parameters of the target area and the emission parameters of the to-be-emitted plume; A second acquisition unit 303 is used to obtain a first discharge height for the to-be-discharged plume based on a determination result that the plume type of the to-be-discharged plume is the first plume type or the second plume type; The third acquisition unit 304 is configured to obtain a target emission height of the to-be-emitted plume based on the first emission height, the attribute parameters of the target area, and the emission parameters of the to-be-emitted plume.

[0052] In an optional scheme, the first determination unit 302 is used to obtain a target emission velocity of the plume to be emitted based on the attribute parameters of the target area and the emission parameters of the plume to be emitted; obtain a first initial flux and a second initial flux of the plume to be emitted based on the target emission velocity and the emission parameters of the plume to be emitted; obtain a third initial flux of the plume to be emitted based on the first initial flux of the plume to be emitted, the attribute parameters of the target area and the emission parameters of the plume to be emitted; and determine whether the plume type of the plume to be emitted is the first plume type or the second plume type based on the second initial flux and the third initial flux.

[0053] In an optional scheme, the target area also includes a horizontal crossflow, and the attribute parameters of the target area include a flow velocity for the horizontal crossflow; the first determination unit 302 is used to obtain a first characteristic length for the horizontal crossflow based on the second initial flux of the plume to be discharged and the flow velocity for the horizontal crossflow; obtain a second characteristic length for the horizontal crossflow based on the third initial flux of the plume to be discharged and the flow velocity for the horizontal crossflow; obtain a target frequency for the plume to be discharged based on the attribute parameters of the target area; obtain a third characteristic length for the horizontal crossflow based on the target frequency for the plume to be discharged and the flow velocity for the horizontal crossflow; determine whether the plume type of the plume to be discharged is the first plume type or the second plume type based on the first characteristic length, the second characteristic length and the third characteristic length for the horizontal crossflow.

[0054] In an optional scheme, the first determination unit 302 is used to obtain a first reference value for the plume type of the plume to be discharged based on the product of the second characteristic length and the third characteristic length for the horizontal cross flow and the first preset value; obtain a second reference value for the plume type of the plume to be discharged based on the first characteristic length for the horizontal cross flow and the second preset value; when the first reference value is less than the second reference value, the plume type of the plume to be discharged is the first plume type; when the first reference value is greater than or equal to the second reference value, the plume type of the plume to be discharged is the second plume type.

[0055] In an optional scheme, the second acquisition unit 303 is used to obtain a first emission height for the plume to be discharged based on the attribute parameters of the target area, the emission parameters of the plume to be discharged and the first determination relationship when the plume type of the plume to be discharged is the first plume type; when the plume type of the plume to be discharged is the second plume type, obtain the first emission height for the plume to be discharged based on the attribute parameters of the target area, the emission parameters of the plume to be discharged and the second determination relationship.

[0056] In an optional scheme, the target area includes an emission layer for the plume to be discharged; the attribute parameters of the target area include the thickness of the emission layer and the initial emission height for the plume to be discharged; the third acquisition unit 304 is used to obtain the target emission height of the plume to be discharged based on a first preset target step when the first emission height is less than the difference between the initial emission height and the thickness of the emission layer; the target emission height of the plume to be discharged is less than the initial emission height; when the first emission height is greater than the initial emission height, the target emission height of the plume to be discharged is obtained based on a second preset target step; the target emission height of the plume to be discharged is greater than the initial emission height.

[0057] In an optional solution, when the first discharge height is greater than the difference between the initial discharge height and the thickness of the discharge layer, and the first discharge height is less than the initial discharge height, the target discharge height of the plume to be discharged is equal to the initial discharge height.

[0058] It should be noted that the device for determining the emission height of the plume in the embodiment of the present application solves the problem based on a principle similar to that of the aforementioned method for determining the emission height of the plume. Therefore, the implementation process, implementation principle and beneficial effects of the device for determining the emission height of the plume can all be referred to the description of the implementation process, implementation principle and beneficial effects of the aforementioned method, and the repeated parts will not be repeated here.

[0059] According to an embodiment of the present application, the present application also provides an electronic device and a readable storage medium.

[0060] Figure 4 A schematic block diagram of an example electronic device 400 that can be used to implement an embodiment of the present application is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present application described and / or required herein.

[0061] like Figure 4As shown, the electronic device 400 includes a computing unit 401, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) 402 or a computer program loaded from a storage unit 408 into a random access memory (RAM) 403. In the RAM 403, various programs and data required for the operation of the electronic device 400 can also be stored. The computing unit 401, the ROM 402, and the RAM 403 are connected to each other via a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0062] Multiple components in the electronic device 400 are connected to the I / O interface 405, including: an input unit 406, such as a keyboard, a mouse, etc.; an output unit 407, such as various types of displays, speakers, etc.; a storage unit 408, such as a disk, an optical disk, etc.; and a communication unit 409, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 409 allows the electronic device 400 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0063] The computing unit 401 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the computing unit 401 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The computing unit 401 performs the various methods and processes described above, such as the emission height determination method of the plume. For example, in some embodiments, the emission height determination method of the plume may be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit 408. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 400 via the ROM 402 and / or the communication unit 409. When the computer program is loaded into the RAM 403 and executed by the computing unit 401, one or more steps of the emission height determination method of the plume described above may be performed. Alternatively, in other embodiments, the computing unit 401 may be configured to perform the plume emission height determination method in any other suitable manner (eg, by means of firmware).

[0064] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0065] The program code for implementing the method of the present application can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that the program code, when executed by the processor or controller, implements the functions / operations specified in the flow chart and / or block diagram. The program code can be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0066] In the context of the present application, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0067] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0068] The systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), and the Internet.

[0069] A computer system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship with each other. The server may be a cloud server, a server of a distributed system, or a server combined with a blockchain.

[0070] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this application can be executed in parallel, sequentially or in different orders, as long as the expected results of the technical solution disclosed in this application can be achieved, and this document is not limited here.

[0071] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0072] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for determining the emission height of a plume, characterized in that: The method is applied to a target area, the target area including a plume to be discharged; the method comprises: Acquire the attribute parameters of the target area and the emission parameters of the plume to be discharged; wherein the target area is an ocean area, and the attribute parameters of the target area include the density gradient of seawater in the ocean area, the density of seawater in the anoxic layer, the thickness of the anoxic layer, and the current horizontal tidal flow velocity; the emission parameters of the plume to be discharged include the radius of the guide pipe for plume discharge, the length of the guide pipe, the roughness of the inner wall of the guide pipe, the initial discharge height and the discharge density of the plume to be discharged; Determining, based on the attribute parameters of the target area and the emission parameters of the plume to be emitted, that the plume type of the plume to be emitted is the first plume type or the second plume type; Based on a determination result that the plume type of the to-be-emitted plume is the first plume type or the second plume type, obtaining a first discharge height for the to-be-emitted plume; A target discharge height of the plume to be discharged is obtained based on the first discharge height, the attribute parameters of the target area and the discharge parameters of the plume to be discharged.

2. The method according to claim 1, characterized in that The step of determining, based on the attribute parameters of the target area and the emission parameters of the to-be-emitted plume, whether the plume type of the to-be-emitted plume is the first plume type or the second plume type comprises: Based on the attribute parameters of the target area and the emission parameters of the plume to be emitted, a target emission velocity of the plume to be emitted is obtained; Based on the target emission velocity and emission parameters of the plume to be emitted, a first initial flux and a second initial flux of the plume to be emitted are obtained; Obtaining a third initial flux of the plume to be discharged based on the first initial flux of the plume to be discharged, the property parameter of the target area, and the discharge parameter of the plume to be discharged; Based on the second initial flux and the third initial flux, the plume type of the to-be-emitted plume is determined to be the first plume type or the second plume type.

3. The method according to claim 2, characterized in that The target area also includes a horizontal cross flow, and the attribute parameters of the target area include a flow velocity for the horizontal cross flow; determining the plume type of the to-be-emitted plume as the first plume type or the second plume type based on the second initial flux and the third initial flux, comprises: Based on a second initial flux of the to-be-emitted plume and a flow velocity for the horizontal cross flow, a first characteristic length for the horizontal cross flow is obtained; Based on the third initial flux of the to-be-emitted plume and the flow velocity for the horizontal cross flow, a second characteristic length for the horizontal cross flow is obtained; Based on the attribute parameters of the target area, a target frequency for the plume to be discharged is obtained; A third characteristic length for the horizontal cross flow is obtained based on a target frequency for the plume to be discharged and a flow velocity for the horizontal cross flow; Based on the first characteristic length, the second characteristic length, and the third characteristic length for the horizontal cross flow, the plume type of the to-be-emitted plume is determined to be the first plume type or the second plume type.

4. The method according to claim 3, characterized in that The step of determining the plume type of the to-be-emitted plume as the first plume type or the second plume type based on the first characteristic length, the second characteristic length, and the third characteristic length for the horizontal crossflow comprises: Obtaining a first reference value for the plume type of the to-be-emitted plume based on the product of the second characteristic length and the third characteristic length for the horizontal cross flow and the first preset value; Based on the first characteristic length for the horizontal cross flow and the second preset value, a second reference value for the plume type of the to-be-emitted plume is obtained; When the first reference value is less than the second reference value, the plume type of the to-be-emitted plume is the first plume type; When the first reference value is greater than or equal to the second reference value, the plume type of the to-be-emitted plume is the second plume type.

5. The method according to any one of claims 1 to 4, characterized in that: The step of obtaining a first discharge height for the to-be-discharged plume based on a determination result that the plume type of the to-be-discharged plume is the first plume type or the second plume type comprises: When the plume type of the to-be-emitted plume is the first plume type, obtaining a first emission height for the to-be-emitted plume based on the attribute parameters of the target area, the emission parameters of the to-be-emitted plume, and the first determination relationship; When the plume type of the to-be-emitted plume is the second plume type, a first discharge height for the to-be-emitted plume is obtained based on the attribute parameters of the target area, the discharge parameters of the to-be-emitted plume and the second determination relationship.

6. The method according to any one of claims 1 to 4, characterized in that: The target area includes an emission layer for the to-be-emitted plume; the attribute parameters of the target area include a thickness of the emission layer and an initial emission height for the to-be-emitted plume; and obtaining a target emission height for the to-be-emitted plume based on the first emission height, the attribute parameters of the target area and the emission parameters of the to-be-emitted plume includes: When the first discharge height is less than the difference between the initial discharge height and the thickness of the discharge layer, a target discharge height of the to-be-discharged plume is obtained based on a first preset target step length; the target discharge height of the to-be-discharged plume is less than the initial discharge height; When the first discharge height is greater than the initial discharge height, a target discharge height of the plume to be discharged is obtained based on a second preset target step length; the target discharge height of the plume to be discharged is greater than the initial discharge height.

7. The method according to claim 6, characterized in that Also includes: When the first discharge height is greater than the difference between the initial discharge height and the thickness of the discharge layer, and the first discharge height is less than the initial discharge height, the target discharge height of the to-be-discharged plume is equal to the initial discharge height.

8. A device for determining the discharge height of a plume, characterized in that: The device is applied to a target area, wherein the target area includes a plume to be discharged; the device comprises: The first acquisition unit is used to acquire the attribute parameters of the target area and the emission parameters of the plume to be discharged; wherein the target area is an ocean area, and the attribute parameters of the target area include the density gradient of seawater in the ocean area, the density of the anoxic layer seawater, the thickness of the anoxic layer, and the current horizontal tidal flow velocity; the emission parameters of the plume to be discharged include the radius of the guide pipe for plume discharge, the length of the guide pipe, the roughness of the inner wall of the guide pipe, the initial discharge height and the discharge density of the plume to be discharged; a first determining unit, configured to determine, based on the attribute parameters of the target area and the emission parameters of the plume to be emitted, whether the plume type of the plume to be emitted is the first plume type or the second plume type; A second acquisition unit, configured to obtain a first discharge height for the to-be-discharged plume based on a determination result that the plume type of the to-be-discharged plume is the first plume type or the second plume type; The third acquisition unit is used to obtain a target emission height of the plume to be emitted based on the first emission height, the attribute parameters of the target area and the emission parameters of the plume to be emitted.

9. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 7.

10. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to make a computer execute the method according to any one of claims 1-7.

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