Determination Method, Device, Electronic Device and Storage Medium for Battery Flow Field Structure

Abstract

The present invention discloses a method, device, electronic device and storage medium for determining a battery flow field structure. The method includes: determining at least one geometric parameter to be used corresponding to the structure to be simulated; constructing a flow field model to be used corresponding to the structure to be simulated according to the at least one geometric parameter to be used; determining a flow velocity parameter to be determined of the flow field model to be used, and when the flow velocity parameter to be determined meets a preset flow velocity parameter detection condition, determining a target simulation flow field corresponding to the structure to be simulated, so as to perform simulation on a fuel cell based on the target simulation flow field. The problem that the design of the battery flow field structure is time-consuming and laborious, and the obtained battery flow field structure does not match the fuel cell is solved. By designing the battery flow field structure through a simulation method, the effect of quickly obtaining a battery flow field structure matching the fuel cell can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cells, and particularly to a method, device, electronic device and storage medium for determining a battery flow field structure. Background Art

[0002] The quality of the flow field structure not only determines the performance output ability of the fuel cell stack, but also has an important impact on the dynamic response ability, operating condition adaptability, durability and life of the stack.

[0003] Currently, the design of the fuel cell flow field is mainly carried out according to the work experience of researchers and the existing structural solutions. However, such a method is highly dependent on the work experience of researchers and relevant knowledge cognition, and for the design of complex and novel flow field structures, it often requires multiple rounds of design, optimization, trial production and verification, etc., which will inevitably lead to a significant increase in the design cost of the battery flow field.

[0004] To solve the above problems, it is necessary to improve the design method of the battery flow field. Summary of the Invention

[0005] The present invention provides a method, device, electronic device and storage medium for determining a battery flow field structure to solve the problems that the design of the battery flow field structure is time-consuming and laborious, and the obtained battery flow field structure is not compatible with the fuel cell.

[0006] According to one aspect of the present invention, there is provided a method for determining a battery flow field structure, including:

[0007] Determining at least one geometric parameter to be used corresponding to the structure to be simulated;

[0008] Constructing a flow field model to be used corresponding to the structure to be simulated according to the at least one geometric parameter to be used; wherein, the flow field model to be used includes a two-dimensional flow field model or a three-dimensional flow field model;

[0009] Determining at least one flow velocity parameter to be determined of the flow field model to be used, and when each flow velocity parameter to be determined meets the preset flow velocity parameter detection condition, determining a target simulation flow field corresponding to the structure to be simulated, so as to perform simulation on the fuel cell based on the target simulation flow field.

[0010] According to another aspect of the present invention, there is provided a device for determining a battery flow field structure, including:

[0011] A geometric parameter determination module for determining at least one geometric parameter to be used corresponding to the structure to be simulated;

[0012] A flow field model construction module, configured to construct a to-be-used flow field model corresponding to the to-be-simulated structure according to the at least one to-be-used geometric parameter; wherein, the to-be-used flow field model includes a two-dimensional flow field model or a three-dimensional flow field model;

[0013] A target simulation flow field determination module, configured to determine at least one to-be-determined flow velocity parameter of the to-be-used flow field model, and when each to-be-determined flow velocity parameter meets a preset flow velocity parameter detection condition, determine a target simulation flow field corresponding to the to-be-simulated structure, so as to perform simulation on the fuel cell based on the target simulation flow field.

[0014] According to another aspect of the present invention, there is provided an electronic device, which includes:

[0015] At least one processor; and

[0016] A memory communicatively connected to the at least one processor; wherein,

[0017] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor, so that the at least one processor can execute the method for determining the battery flow field structure according to any embodiment of the present invention.

[0018] According to another aspect of the present invention, there is provided a computer-readable storage medium, which stores computer instructions, and the computer instructions are used to implement the method for determining the battery flow field structure according to any embodiment of the present invention when executed by a processor.

[0019] The technical solution of this embodiment determines at least one to-be-used geometric parameter corresponding to the to-be-simulated structure. Based on the obtained to-be-used geometric parameters, a two-dimensional flow field model or a three-dimensional flow field model corresponding to the to-be-simulated structure is constructed by using two-dimensional drawing software or three-dimensional structure simulation software. According to the at least one to-be-used geometric parameter, a to-be-used flow field model corresponding to the to-be-simulated structure is constructed, and the to-be-used elements and to-be-used flow field information corresponding to the to-be-used flow field model are processed according to a flow velocity determination function to determine the to-be-determined flow velocity parameter of the to-be-used flow field model. When the to-be-determined flow velocity parameter meets the preset flow velocity parameter detection condition, a target simulation flow field corresponding to the to-be-simulated structure is determined, so as to perform simulation on the fuel cell based on the target simulation flow field. When the to-be-determined flow velocity parameter is the minimum flow velocity parameter, the obtained to-be-used flow field is used as the target simulation flow field, so as to perform simulation on the fuel cell based on the target simulation flow field. It solves the problems that the design of the battery flow field structure is time-consuming and laborious, and the obtained battery flow field structure does not match the fuel cell. By designing the battery flow field structure through a simulation method, the effect of quickly obtaining a battery flow field structure matching the fuel cell can be achieved.

[0020] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 is a flowchart of a method for determining a battery flow field structure according to Embodiment 1 of the present invention;

[0023] Figure 2 is a flowchart of a method for determining a battery flow field structure according to Embodiment 2 of the present invention;

[0024] Figure 3 is a schematic diagram of the geometric structure of a battery flow field according to Embodiment 3 of the present invention;

[0025] Figure 4 is a flowchart of a method for determining a battery flow field structure according to Embodiment 3 of the present invention;

[0026] Figure 5 is a schematic diagram of the structure of a device for determining a battery flow field structure according to Embodiment 4 of the present invention;

[0027] Figure 6 is a schematic diagram of the structure of an electronic device for implementing the method for determining a battery flow field structure of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to enable those skilled in the art to better understand the solution of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] It should be noted that the terms "first", "second", etc. in the specification, claims and above-mentioned drawings of the present invention are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0030] Embodiment 1

[0031] Figure 1 FIG. is a flowchart of a method for determining a battery flow field structure provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of determining a battery flow field structure adapted to a fuel cell. This method can be executed by a device for determining a battery flow field structure, and the device for determining a battery flow field structure can be implemented in the form of hardware / or software. The device for determining a battery flow field structure can be configured in an electronic device capable of executing the method for determining a battery flow field structure.

[0032] Before elaborating on this technical solution in detail, a brief introduction to the application scenario of this technical solution is given to understand this technical solution more clearly. The performance of a fuel cell stack is affected by many factors, and one of the most important factors is the bipolar plate flow field, that is, the structures of the cathode flow field, anode flow field and coolant flow field. In practical applications, the structure of the battery flow field determines the ability of the fuel cell to output performance, and also has a greater impact on the dynamic response ability, operating condition adaptability, durability and anode life of the stack. In order to make the structure of the battery flow field enable the distribution of the cathode, anode and coolant flow fields of the bipolar plate to be more uniform, and further make the current density distribution area and temperature distribution of the fuel cell more uniform, it is necessary to design the structure of the battery flow field according to the actual situation of the fuel cell to determine the battery flow field structure that best matches the fuel cell.

[0033] As Figure 1 shown, the method includes:

[0034] S110. Determine at least one geometric parameter to be used corresponding to the structure to be simulated.

[0035] Among them, different fuel cells are matched with different flow field structures. The structure to be simulated can be understood as the flow field structure determined at the current moment and matched with the fuel cell. The geometric parameter to be used can be understood as the shape information and size information, etc. of the structure to be simulated.

[0036] It should be noted that generally, the design of the flow field structure relies more on the relevant experience and knowledge of the staff, and the obtained flow field structure may not be fully adapted to the fuel cell. In this technical solution, a simulation method can be used to design the flow field structure of the fuel cell to determine the most suitable flow field structure for the fuel cell. Based on this, the structure to be simulated in this technical solution can be the flow field structure corresponding to the fuel cell for which the flow field structure is designed according to the current needs, or can also be understood as the flow field structure designed according to the performance characteristics of the fuel cell, etc.

[0037] Specifically, the structure to be simulated can be designed according to the performance characteristics of the fuel cell, etc. The structure to be simulated can include structures such as a flow field inlet, a flow channel outlet, a flow field area (such as a distribution area or a flow channel area, etc.), and a flow channel. Geometric parameters to be used for the structure to be simulated are designed according to requirements. For example, geometric parameter information such as the shape and size of the flow field inlet and the flow field outlet, the flow channel width, the ridge width, the length and width of the distribution area, etc. can be designed.

[0038] Optionally, determining at least one geometric parameter to be used corresponding to the structure to be simulated includes: inputting at least one geometric parameter to be used corresponding to the structure to be simulated based on an editing control in a target display interface.

[0039] In practical applications, the target display interface can be understood as an interface for determining the flow field structure corresponding to the structure to be simulated. The target display interface includes at least one editing control. In the editing control, geometric parameters to be used corresponding to the structure to be simulated can be input to set the geometric information corresponding to the structure to be simulated based on each geometric parameter to be used.

[0040] Among them, the geometric parameters to be used include at least one of the shape, size, flow channel width, and ridge width corresponding to the structure to be simulated.

[0041] S120. Construct a flow field model to be used corresponding to the structure to be simulated according to at least one geometric parameter to be used.

[0042] Among them, the flow field model to be used can be understood as the model obtained after simulating the structure to be simulated. The flow field model to be used includes a two-dimensional flow field model or a three-dimensional flow field model.

[0043] Specifically, after determining the geometric parameters to be used corresponding to the structure to be simulated, the structure to be simulated is simulated based on simulation software, and a flow field model to be used corresponding to the structure to be simulated can be obtained.

[0044] Optionally, the flow field model to be used is a two-dimensional flow field model. According to at least one geometric parameter to be used, a flow field model to be used corresponding to the structure to be simulated is constructed, including: based on two-dimensional drawing software, performing drawing processing on at least one simulation area in the structure to be simulated to obtain sub-areas to be used corresponding to each simulation area; based on each sub-area to be used, constructing a two-dimensional flow field model corresponding to the structure to be simulated.

[0045] Among them, the two-dimensional drawing software is software for drawing two-dimensional graphic structures. The simulation area includes at least one of the flow field inlet area, the flow channel area, and the distribution area in the structure to be simulated. The sub-area to be used can be understood as the area obtained after drawing based on the two-dimensional drawing software, corresponding to the simulation area. The size of the sub-area to be used and the simulation area can be equal, or enlarged or reduced in proportion. The two-dimensional flow field model can be understood as the flow field model obtained by drawing the structure to be simulated based on the two-dimensional drawing software, and can be a plane model of a flow field structure.

[0046] Specifically, the structure to be simulated includes at least one simulation area. According to the geometric parameter to be used of the structure to be simulated, the size information of each simulation area can be determined. Based on the two-dimensional drawing software, each simulation area is drawn to obtain sub-areas to be used corresponding to each simulation area, so as to construct a two-dimensional flow field model corresponding to the structure to be simulated based on each sub-area to be used.

[0047] Optionally, the flow field model to be used is a three-dimensional flow field model, and further includes: based on three-dimensional structure simulation software, performing structure simulation on at least one simulation component in the structure to be simulated to obtain sub-models to be used corresponding to each simulation component; based on preset connection information, connecting each sub-model to be used to obtain a three-dimensional flow field model corresponding to the structure to be simulated.

[0048] Among them, the three-dimensional structure simulation software can be used to simulate the structure to be simulated according to the geometric parameters to be used corresponding to the structure to be simulated, and obtain a three-dimensional structure model corresponding to the structure to be simulated. The components to be simulated can be understood as the components in the structure to be simulated. It can be understood that the structure to be simulated usually includes multiple components to be simulated, such as at least one of the flow field inlet structure, the flow channel structure, and the distribution area structure in the structure to be used for simulation. When simulating the structure to be simulated based on the three-dimensional structure simulation software, in order to make the three-dimensional structure model obtained by simulation closer to the real structure to be simulated, each component to be simulated in the structure to be simulated can be simulated to obtain a sub-model to be used corresponding to each component to be simulated. The preset connection information can be understood as the connection information between two adjacent components to be simulated in each structure to be simulated, and the connection information of each sub-model to be used matches the connection information of the corresponding component to be simulated. The three-dimensional flow field model can be understood as the flow field model obtained by performing three-dimensional simulation on the structure to be simulated based on the three-dimensional simulation software, usually a three-dimensional model.

[0049] Specifically, by performing three-dimensional structure simulation on each component to be simulated in the structure to be simulated based on the three-dimensional simulation software, a sub-model to be used corresponding to each component to be simulated can be obtained. Further, in order to make the simulated model match the structure to be simulated, each sub-model to be used is connected according to the set connection information to obtain a three-dimensional flow field model corresponding to the structure to be simulated.

[0050] The advantage of such a setting is that when simulating the structure to be simulated based on the simulation method, if the obtained three-dimensional flow field model does not match the actual requirements, the parameters of the obtained three-dimensional flow field model can be adjusted so as to determine the flow field structure corresponding to the actual battery requirements according to the three-dimensional flow field model, without the need for repeated modification and optimization after the battery flow field structure is determined, which can not only improve the design efficiency of the battery flow field structure, but also reduce the design cost in the flow field structure design.

[0051] S130. Determine the flow velocity parameter to be determined of the flow field model to be used. When the flow velocity parameter to be determined meets the preset flow velocity parameter detection condition, determine the target simulation flow field corresponding to the structure to be simulated, so as to perform simulation on the fuel cell based on the target simulation flow field.

[0052] Among them, the flow velocity parameter to be determined can be understood as the fluid flow velocity parameter of the flow channel region in the flow field model to be used. The preset flow velocity parameter detection condition can be understood as the condition for detecting the flow velocity parameter to be determined, which can be a preset flow velocity threshold. For example, when the flow velocity parameter to be determined is greater than the preset flow velocity threshold, the flow velocity parameter to be determined meets the preset flow velocity parameter detection condition. The target simulation flow field can be understood as the flow field structure that is most suitable for the flow field structure requirements of the fuel cell.

[0053] Specifically, after obtaining the flow field model to be used, in order to determine whether the flow field structure corresponding to the obtained flow field model to be used matches the current business requirements, that is, whether it matches the battery for which the flow field structure needs to be designed currently, it can be determined by the undetermined flow velocity parameter corresponding to the flow field model to be used. If the undetermined flow velocity parameter meets the preset flow velocity parameter detection condition, it can be determined that the flow field structure corresponding to the flow field model to be used is the target simulation flow field corresponding to the structure to be simulated.

[0054] The technical solution of this embodiment determines at least one geometric parameter to be used corresponding to the structure to be simulated. Based on the obtained geometric parameter to be used, a two-dimensional flow field model or a three-dimensional flow field model corresponding to the structure to be simulated is constructed using two-dimensional drawing software or three-dimensional structure simulation software. According to at least one geometric parameter to be used, a flow field model to be used corresponding to the structure to be simulated is constructed. The elements to be used and the flow field information corresponding to the flow field model to be used are processed according to the flow velocity determination function, and the undetermined flow velocity parameter of the flow field model to be used is determined. When the undetermined flow velocity parameter meets the preset flow velocity parameter detection condition, the target simulation flow field corresponding to the structure to be simulated is determined to perform simulation on the fuel cell based on the target simulation flow field. When the undetermined flow velocity parameter is the minimum flow velocity parameter, the obtained flow field to be used is used as the target simulation flow field to perform simulation on the fuel cell based on the target simulation flow field. It solves the problems that the design of the battery flow field structure is time-consuming and laborious, and the obtained battery flow field structure does not match the fuel cell. By designing the battery flow field structure through the simulation method, the effect of quickly obtaining a battery flow field structure that matches the fuel cell can be achieved.

[0055] Embodiment 2

[0056] Figure 2 It is a flowchart of a method for determining a battery flow field structure provided in the second embodiment of the present invention. Optionally, the determination of the undetermined flow velocity parameter of the flow field model to be used is refined. When the undetermined flow velocity parameter meets the preset flow velocity parameter detection condition, the target simulation flow field corresponding to the structure to be simulated is determined to perform simulation on the fuel cell based on the target simulation flow field.

[0057] As Figure 2 shown, the method includes:

[0058] S210. Determine at least one geometric parameter to be used corresponding to the structure to be simulated.

[0059] S220. Construct a flow field model to be used corresponding to the structure to be simulated according to at least one geometric parameter to be used.

[0060] S230. Determine the elements to be used and the flow field information corresponding to the flow field model to be used.

[0061] Among them, the elements to be used include at least one of the inlet flow rate, fluid medium, fluid flow velocity parameter, and outlet pressure parameter corresponding to the flow field model to be used, and the flow field information to be used includes laminar flow field information and turbulent flow field information.

[0062] Specifically, when determining the target simulation flow field corresponding to the structure to be simulated, generally, it is possible to judge whether the flow field model to be used can be used as the target simulation flow field corresponding to the structure to be simulated according to the inlet flow rate of the flow field model to be used, the fluid medium corresponding to the current fuel cell, the fluid flow velocity parameter, and the outlet pressure parameter of the flow field model to be used, etc.

[0063] Optionally, determining the elements to be used and the flow field information to be used corresponding to the flow field model to be used includes: determining the to-be-determined Reynolds number corresponding to the fluid medium in the elements to be used; determining whether the to-be-determined Reynolds number is greater than the preset Reynolds number; if so, applying turbulent flow field information to the flow field model to be used; if not, applying laminar flow field information to the flow field model to be used.

[0064] Among them, the Reynolds number can be understood as a dimensionless number used to characterize the fluid flow situation. In this technical solution, the to-be-determined Reynolds number can be understood as the Reynolds number corresponding to the fluid medium in the fuel cell where the flow field structure needs to be determined currently. Exemplarily, the fluid medium can be hydrogen, air, coolant, etc. Different flow field information to be used needs to be adopted for different fluid media, and the preset Reynolds number can be understood as a threshold for determining the flow field information to be used corresponding to different fluid media.

[0065] Specifically, the fluid medium of the fuel cell can have different types, and different flow field information to be used needs to be adopted for different fluid media. When determining the flow field information to be used applied to the flow field model to be used, it is judged whether the to-be-determined Reynolds number corresponding to the fluid medium in the elements to be used of the flow field model to be used is greater than the preset Reynolds number. If so, turbulent flow field information is applied to the flow field model to be used, and if not, laminar flow field information is applied to the flow field model to be used.

[0066] S240. Based on the flow velocity determination function, process the fluid flow velocity parameter in the flow field information to be used to determine the to-be-determined flow velocity parameter corresponding to the flow field model to be used.

[0067] Among them, the flow velocity determination function can be understood as a function used to determine the fluid flow velocity in the flow channel of the flow field model to be used. The fluid flow velocity parameter can be understood as the flow velocity of the fluid in the flow field model to be used.

[0068] Specifically, the flow channel region in the to-be-used flow field model includes multiple flow channels. When the fluid flows out through each flow channel, the outflow velocity of the fluid is different. It should be noted that one of the criteria for judging whether the to-be-used flow field model is suitable for the current fuel cell can usually be the coefficient of difference between the fluid flow velocities in each flow channel. The smaller the difference in the fluid flow velocities of each flow channel, the more uniform the fluid flow velocity in the to-be-used flow field model, and the more suitable the to-be-used flow field model is for the current fuel cell. Optionally, the flow velocity parameters in the to-be-used flow field information can be processed through a flow velocity determination function to obtain the to-be-determined flow velocity parameters corresponding to the to-be-used flow field model, where the flow velocity determination function is:

[0069]

[0070] Wherein, S represents the flow velocity parameter corresponding to the to-be-used flow field model, and S d represents the standard deviation of the average flow velocities of all flow channels in the to-be-used flow field model, and V avg represents the average flow velocity of all flow channels in the to-be-used flow field model.

[0071] S250. When the to-be-determined flow velocity parameter is the minimum flow velocity parameter, determine the target simulation flow field corresponding to the to-be-simulated structure.

[0072] Wherein, the minimum flow velocity parameter is determined based on the ratio of the standard deviation of the average flow velocities of the flow channels in the to-be-used flow field model to the average flow velocity of the flow channels.

[0073] Specifically, according to the flow velocity determination function, the to-be-determined flow velocity parameter corresponding to the to-be-used flow field model can be determined. The smaller the to-be-determined flow velocity parameter, the more matching the to-be-used flow field model is with the flow field structure corresponding to the to-be-simulated structure. When the to-be-determined flow velocity parameter is the smallest, the to-be-used flow field model at this time can be used as the target simulation flow field.

[0074] The technical solution of this embodiment is to determine at least one to-be-used geometric parameter corresponding to the to-be-simulated structure; construct a to-be-used flow field model corresponding to the to-be-simulated structure according to the at least one to-be-used geometric parameter; determine the to-be-used elements and to-be-used flow field information corresponding to the to-be-used flow field model; process the fluid flow velocity parameters in the to-be-used flow field information based on the flow velocity determination function to determine the to-be-determined flow velocity parameters corresponding to the to-be-used flow field model; when the to-be-determined flow velocity parameter is the minimum flow velocity parameter, determine the target simulation flow field corresponding to the to-be-simulated structure. It solves the problems that the design of the battery flow field structure is time-consuming and laborious, and the obtained battery flow field structure is not suitable for the fuel cell. By designing the battery flow field structure through the simulation method, the effect of quickly obtaining a battery flow field structure that matches the fuel cell can be achieved.

[0075] Embodiment Three

[0076] In a specific example, the flow field structure of the fuel cell is preliminarily designed according to business requirements. For example, Figure 3 as shown, the flow field structure usually includes multiple regions, such as the flow field inlet, the distribution region, and the flow channel region, etc. In order to obtain the flow field structure that best matches the fuel cell, first, the corresponding structure to be simulated is determined according to each region of the flow field structure, and the geometric parameters to be used corresponding to the structure to be simulated are determined. For example, Figure 4 as shown, the flow velocity at the flow field inlet, the shape and size of the flow field inlet, the length and width of the distribution region, the flow channel width and the rib width, etc. can be defined for the structure to be simulated. Among them, the length of the distribution region is usually defined as 1 / 10 - 1 / 3 of the entire flow field length, and the width of the distribution region is usually the same as the width of the flow field; the width of the flow channel is usually defined in the range of 0.1 mm to 2 mm, and the range of the rib width is 0.3 - 2 mm; the width of the flow field inlet should not be less than 1 / 6 of the side length where it is located.

[0077] Furthermore, a topology optimization model is established to determine the boundary conditions (i.e., the elements to be used) and the physical field (i.e., the flow field information to be used) corresponding to the flow field model to be used. For example, a two-dimensional flow field model corresponding to the structure to be simulated is constructed based on two-dimensional drawing software, or a three-dimensional flow field model corresponding to the structure to be simulated is constructed based on three-dimensional structure simulation software. Furthermore, the structure of the flow channel region of the flow field model to be used is designed to complete the flow field design. Among them, the filter in the topology optimization model can be a Helmholtz type filter.

[0078] Exemplarily, after obtaining the flow field model to be used, according to whether the Reynolds coefficient corresponding to the fluid medium in the elements to be used is greater than the preset Reynolds coefficient, the flow field information to be used applied to the flow field model to be used is determined. Among them, the fluid medium can include hydrogen, air, or coolant, etc., and the flow field information to be used can include laminar flow field information or turbulent flow field information.

[0079] In order to ensure that the flow field model to be used matches the business requirements, that is, is adapted to the flow field structure corresponding to the structure to be simulated, the flow velocity parameter to be determined of the flow field model to be used can be determined through a flow velocity determination function. Among them, the flow velocity determination function is:

[0080]

[0081] where S represents the flow velocity parameter corresponding to the flow field model to be used, S d represents the standard deviation of the average flow velocity of all flow channels in the flow field model to be used, and V avg represents the average flow velocity of all flow channels in the flow field model to be used.

[0082] For the technical solution of this embodiment, at least one geometric parameter to be used corresponding to the structure to be simulated is determined. Based on the obtained geometric parameter to be used, a two-dimensional flow field model or a three-dimensional flow field model corresponding to the structure to be simulated is constructed by using two-dimensional drawing software or three-dimensional structure simulation software. According to at least one geometric parameter to be used, a flow field model to be used corresponding to the structure to be simulated is constructed. According to the flow velocity determination function, the elements to be used and the flow field information to be used corresponding to the flow field model to be used are processed to determine the flow velocity parameter to be determined of the flow field model to be used. When the flow velocity parameter to be determined meets the preset flow velocity parameter detection condition, a target simulation flow field corresponding to the structure to be simulated is determined, so as to perform simulation on the fuel cell based on the target simulation flow field. When the flow velocity parameter to be determined is the minimum flow velocity parameter, the obtained flow field to be used is used as the target simulation flow field to perform simulation on the fuel cell based on the target simulation flow field. This solves the problems that the design of the battery flow field structure is time-consuming and laborious, and the obtained battery flow field structure does not match the fuel cell. By designing the battery flow field structure through a simulation method, a battery flow field structure matching the fuel cell can be obtained quickly.

[0083] Embodiment 4

[0084] Figure 5 FIG. 7 is a schematic structural diagram of a device for determining a battery flow field structure provided in Embodiment 4 of the present invention. The device includes: a geometric parameter determination module 310, a flow field model construction module 320, and a target simulation flow field determination module 330.

[0085] Among them, the geometric parameter determination module 310 is configured to determine at least one geometric parameter to be used corresponding to the structure to be simulated;

[0086] The flow field model construction module 320 is configured to construct a flow field model to be used corresponding to the structure to be simulated according to at least one geometric parameter to be used; among them, the flow field model to be used includes a two-dimensional flow field model and a three-dimensional flow field model;

[0087] The target simulation flow field determination module 330 is configured to determine the flow velocity parameter to be determined of the flow field model to be used. When the flow velocity parameter to be determined meets the preset flow velocity parameter detection condition, a target simulation flow field corresponding to the structure to be simulated is determined, so as to perform simulation on the fuel cell based on the target simulation flow field.

[0088] In the technical solution of this embodiment, at least one geometric parameter to be used corresponding to the structure to be simulated is determined. Based on the obtained geometric parameter to be used, a two-dimensional flow field model or a three-dimensional flow field model corresponding to the structure to be simulated is constructed by using two-dimensional drawing software or three-dimensional structure simulation software. According to at least one geometric parameter to be used, a flow field model to be used corresponding to the structure to be simulated is constructed. According to the flow velocity determination function, the elements to be used and the flow field information to be used corresponding to the flow field model to be used are processed to determine the flow velocity parameter to be determined of the flow field model to be used. When the flow velocity parameter to be determined meets the preset flow velocity parameter detection condition, a target simulation flow field corresponding to the structure to be simulated is determined, so as to perform simulation on the fuel cell based on the target simulation flow field. When the flow velocity parameter to be determined is the minimum flow velocity parameter, the obtained flow field to be used is used as the target simulation flow field to perform simulation on the fuel cell based on the target simulation flow field. This solves the problems that the design of the battery flow field structure is time-consuming and laborious, and the obtained battery flow field structure does not match the fuel cell. By designing the battery flow field structure through a simulation method, a battery flow field structure matching the fuel cell can be obtained quickly.

[0089] Optionally, a geometric parameter determination module is configured to input at least one geometric parameter to be used corresponding to the structure to be simulated based on an edit control in the target display interface; wherein, the geometric parameter to be used includes at least one of the shape, size, flow channel width, and ridge width corresponding to the structure to be simulated.

[0090] Optionally, the flow field model construction module includes: a drawing unit configured to perform drawing processing on at least one simulation area in the structure to be simulated based on two-dimensional drawing software to obtain a sub-area to be used corresponding to each simulation area; wherein, the simulation area includes at least one of a flow field inlet area, a flow channel area, and a distribution area in the structure to be simulated;

[0091] A two-dimensional flow field model construction unit configured to construct a two-dimensional flow field model corresponding to the structure to be simulated based on each sub-area to be used.

[0092] Optionally, the flow field model construction module further includes: a structure simulation unit configured to perform structure simulation on at least one simulation component in the structure to be simulated based on three-dimensional structure simulation software to obtain a sub-model to be used corresponding to each simulation component; wherein, the simulation component includes at least one of a flow field inlet structure, a flow channel structure, and a distribution area structure in the structure to be used for simulation;

[0093] A three-dimensional flow field model determination unit is used to connect each sub-model to be used based on preset connection information to obtain a three-dimensional flow field model corresponding to the structure to be simulated. The preset connection information includes the connection information of adjacent components to be simulated, and the connection information of each sub-model to be used matches the connection information of the corresponding component to be simulated.

[0094] Optionally, the target simulation flow field determination module includes: a flow field information determination unit, which is used to determine the elements to be used and the flow field information to be used corresponding to the flow field model to be used. The elements to be used include at least one of the inlet flow rate, fluid medium, fluid velocity parameter, and outlet pressure parameter corresponding to the flow field model to be used, and the flow field information to be used includes laminar flow field information and turbulent flow field information.

[0095] A flow velocity parameter determination unit is used to process the fluid velocity parameter in the flow field information to be used based on a flow velocity determination function to determine the flow velocity parameter to be determined corresponding to the flow field model to be used.

[0096] A target simulation flow field determination unit is used to determine the target simulation flow field corresponding to the structure to be simulated when the flow velocity parameter to be determined is the minimum flow velocity parameter. The minimum flow velocity parameter is determined based on the ratio of the standard deviation of the average flow velocity in the flow channels of the flow field model to be used to the average flow velocity of the flow channels.

[0097] Optionally, the flow field information determination unit includes: a Reynolds number determination subunit, which is used to determine the Reynolds number to be determined corresponding to the fluid medium in the elements to be used.

[0098] A judgment subunit is used to determine whether the Reynolds number to be determined is greater than a preset Reynolds number.

[0099] A first subunit is used to, if so, apply turbulent flow field information to the flow field model to be used.

[0100] A second subunit is used to, if not, apply laminar flow field information to the flow field model to be used.

[0101] Optionally, the flow velocity determination function is:

[0102]

[0103] where S represents the flow velocity parameter corresponding to the flow field model to be used, S d represents the standard deviation of the average flow velocity of all flow channels in the flow field model to be used, and V avg represents the average flow velocity of all flow channels in the flow field model to be used.

[0104] The determining device for the battery flow field structure provided by the embodiment of the present invention can execute the method for determining the battery flow field structure provided by any embodiment of the present invention, and has the corresponding functional modules and beneficial effects for executing the method.

[0105] Embodiment Five

[0106] Figure 6 FIG. shows a schematic structural diagram of an electronic device 10 that can be used to implement the embodiments of the present invention. The electronic device is intended to represent various forms of digital computers, such as, laptop computers, desktop computers, workstations, 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 processors, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0107] As Figure 6 shown, the electronic device 10 includes at least one processor 11, and a memory communicatively connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc. Among them, the memory stores a computer program executable by the at least one processor, and the processor 11 can execute various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 into the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. The input / output (I / O) interface 15 is also connected to the bus 14.

[0108] Multiple components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0109] The processor 11 can be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the method for determining the battery flow field structure.

[0110] In some embodiments, the method for determining the battery flow field structure can be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the method for determining the battery flow field structure described above can be executed. Alternatively, in other embodiments, the processor 11 can be configured to execute the method for determining the battery flow field structure by any other suitable means (e.g., by means of firmware).

[0111] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuitry, integrated circuit systems, field-programmable gate arrays (FPGA), application-specific integrated circuits (ASIC), application-specific standard products (ASSP), systems-on-chip (SOC), complex programmable logic devices (CPLD), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include: implemented in one or more computer programs executable and / or interpretable on a programmable system including at least one programmable processor, which can be a special or general programmable processor, receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting the data and instructions to the storage system, the at least one input device, and the at least one output device.

[0112] The computer program for implementing the method of the present invention can be written in any combination of one or more programming languages. These computer programs can be provided to the processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowchart and / or block diagram are implemented. The computer program can be executed entirely on the machine, partially on the machine, as a stand-alone software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0113] In the context of the present invention, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer-readable storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. Alternatively, the computer-readable storage medium can be a machine-readable signal medium. More specific examples of the machine-readable storage medium would include an electrical connection based on one or more wires, 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 disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0114] To provide for interaction with a user, the systems and techniques described herein can be implemented on an electronic device 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 a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can also be used to provide for interaction with the user; for example, 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).

[0115] The systems and techniques described herein can be implemented in a computing system that includes backend 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 frontend components (e.g., a user computer having a graphical user interface or a web browser through which the user can interact with an implementation of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system can 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), a blockchain network, and the Internet.

[0116] A computer system may include a client and a server. The client and the server are generally far from each other and usually interact via a communication network. The relationship between the client and the server is created by computer programs that run on the respective computers and have a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or a cloud host, which is a host product in the cloud computing service system, solving the defects of difficult management and weak business scalability existing in traditional physical hosts and VPS services.

[0117] It should be understood that various forms of the processes shown above can be used, steps can be reordered, added or deleted. For example, the steps recited in the present invention can be executed in parallel, sequentially or in a different order, as long as the desired results of the technical solution of the present invention can be achieved, and no limitation is made herein.

[0118] The above specific embodiments do not constitute a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for determining a battery flow field structure, characterized in that, comprising: determining at least one geometric parameter to be used corresponding to the structure to be simulated; constructing a flow field model to be used corresponding to the structure to be simulated according to the at least one geometric parameter to be used; wherein, the flow field model to be used includes a two-dimensional flow field model or a three-dimensional flow field model; determining an undetermined flow velocity parameter of the flow field model to be used, and when the undetermined flow velocity parameter meets a preset flow velocity parameter detection condition, determining a target simulation flow field corresponding to the structure to be simulated, so as to perform simulation on the fuel cell based on the target simulation flow field; wherein, the determining the undetermined flow velocity parameter of the flow field model to be used, and when the undetermined flow velocity parameter meets a preset flow velocity parameter detection condition, determining a target simulation flow field corresponding to the structure to be simulated, includes: determining the elements to be used and the flow field information to be used corresponding to the flow field model to be used; wherein, the elements to be used include at least one of an inlet flow rate, a fluid medium, a fluid flow velocity parameter, and an outlet pressure parameter corresponding to the flow field model to be used, and the flow field information to be used includes laminar flow field information and turbulent flow field information; processing the fluid flow velocity parameter in the flow field information to be used based on a flow velocity determination function to determine an undetermined flow velocity parameter corresponding to the flow field model to be used; when the undetermined flow velocity parameter is a minimum flow velocity parameter, determining a target simulation flow field corresponding to the structure to be simulated; wherein, the minimum flow velocity parameter is determined based on the ratio of the standard deviation of the average flow velocity in the flow channel in the flow field model to be used to the average flow velocity of the flow channel.

2. The method according to claim 1, characterized in that, the determining at least one geometric parameter to be used corresponding to the structure to be simulated includes: inputting at least one geometric parameter to be used corresponding to the structure to be simulated based on an editing control in a target display interface; wherein, the geometric parameter to be used includes at least one of a shape, a size, a flow channel width, and a ridge width corresponding to the structure to be simulated.

3. The method according to claim 1, characterized in that, the flow field model to be used is a two-dimensional flow field model, and the constructing a flow field model to be used corresponding to the structure to be simulated according to the at least one geometric parameter to be used includes: performing drawing processing on at least one simulation area in the structure to be simulated based on two-dimensional drawing software to obtain sub-areas to be used corresponding to each simulation area; wherein, the simulation area includes at least one of a flow field inlet area, a flow channel area, and a distribution area in the structure to be simulated; constructing a two-dimensional flow field model corresponding to the structure to be simulated based on each sub-area to be used.

4. The method according to claim 1, characterized in that, the flow field model to be used is a three-dimensional flow field model, and further includes: Based on a three-dimensional structure simulation software, perform a structure simulation on at least one component to be simulated in the structure to be simulated, and obtain a sub-model to be used corresponding to each component to be simulated; wherein, the component to be simulated includes at least one of a flow field inlet structure, a flow channel structure, and a distribution area structure in the structure to be used for simulation. Based on preset connection information, connect each sub-model to be used to obtain the three-dimensional flow field model corresponding to the structure to be simulated; wherein, the preset connection information includes connection information of adjacent components to be simulated, and the connection information of each sub-model to be used matches the connection information of the corresponding component to be simulated.

5. The method according to claim 1, characterized in that the determining the elements to be used and the flow field information to be used corresponding to the flow field model to be used includes: determining the Reynolds coefficient to be determined corresponding to the fluid medium in the elements to be used; determining whether the Reynolds coefficient to be determined is greater than a preset Reynolds coefficient; if so, apply turbulent flow field information to the flow field model to be used; if not, apply laminar flow field information to the flow field model to be used.

6. The method according to claim 1, characterized in that the flow velocity determination function is: ； Among them, represents the flow velocity parameter corresponding to the flow field model to be used, represents the standard deviation of the average flow velocity of all flow channels in the flow field model to be used, represents the average flow velocity of all flow channels in the flow field model to be used.

7. An apparatus for determining a battery flow field structure, characterized in that it includes: a geometric parameter determination module for determining at least one geometric parameter to be used corresponding to the structure to be simulated; a flow field model construction module for constructing a flow field model to be used corresponding to the structure to be simulated according to the at least one geometric parameter to be used; wherein, the flow field model to be used includes a two-dimensional flow field model and a three-dimensional flow field model; a target simulation flow field determination module for determining at least one flow velocity parameter to be determined of the flow field model to be used, and when each flow velocity parameter to be determined meets a preset flow velocity parameter detection condition, determining a target simulation flow field corresponding to the structure to be simulated, so as to perform simulation on a fuel cell based on the target simulation flow field; wherein, the target simulation flow field determination module includes: a flow field information determination unit for determining the elements to be used and the flow field information to be used corresponding to the flow field model to be used; wherein, the elements to be used include at least one of an inlet flow rate, a fluid medium, a fluid flow velocity parameter, and an outlet pressure parameter corresponding to the flow field model to be used, and the flow field information to be used includes laminar flow field information and turbulent flow field information; a flow velocity parameter determination unit for processing the fluid flow velocity parameter in the flow field information to be used based on a flow velocity determination function to determine a flow velocity parameter to be determined corresponding to the flow field model to be used; a target simulation flow field determination unit for determining a target simulation flow field corresponding to the structure to be simulated when the flow velocity parameter to be determined is a minimum flow velocity parameter; wherein, the minimum flow velocity parameter is determined based on the ratio of the standard deviation of the average flow velocity in the flow channel in the flow field model to be used to the average flow velocity of the flow channel.

8. An electronic device, characterized in that the electronic device includes: one or more processors; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and when the computer program is executed by the at least one processor, the at least one processor is enabled to execute the method for determining the battery flow field structure according to any one of claims 1-6.

9. A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer instructions for implementing the method for determining the battery flow field structure according to any one of claims 1-6 when executed by a processor.

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