Flow field optimization method and device and storage medium

Abstract

The embodiment of the invention discloses a flow field optimization method and device and a storage medium, and the method comprises the steps: obtaining a plurality of parameter groups correspondingto any type of parameters of a flow guide plate, wherein the values of the types of parameters in any two parameter groups corresponding to the type of parameters are different, the numerical values of other types of parameters are the same, and the guide plate is located in a set area at the end of the fuel cell; obtaining the inlet and outlet pressure loss of the end part of the fuel cell when the parameters of the use type correspond to a plurality of parameter groups; performing regression processing on the type of parameters and the obtained inlet and outlet pressure loss by applying a preset regression function, and determining the numerical value of the type of parameters when the inlet and outlet pressure loss at the end part of the fuel cell is minimum as the numerical value of the parameters of the guide plate when the flow field of the fuel cell device is optimized. According to the method, the efficiency and precision of flow field optimization are improved; the fuel cell is designed according to the determined numerical values of the parameters of the guide plate, the internal flow field of the fuel cell is improved, and the performance of the fuel cell is improved.

Description

technical field [0001] The present application relates to the technical field of fluid mechanics, in particular to a flow field optimization method, device and storage medium. Background technique [0002] A fuel cell is a device that directly converts the chemical energy in fuel into electrical energy through an electrochemical reaction without combustion. Specifically, hydrogen and oxygen are supplied to the anode and the cathode respectively, and the hydrogen atoms of the reaction gas entering the porous anode through the diffusion layer are adsorbed by the catalyst to generate hydrogen ions and electrons, and the hydrogen ions migrate to the cathode through the proton exchange membrane in the middle, and the cathode catalyst layer is composed of Hydrogen ions and electrons flowing in through the external circuit react together to form water and are discharged through the reaction tail gas. [0003] The flow field at the end of the fuel cell directly affects the uniformi...

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Problems solved by technology

[0003] The flow field at the end of the fuel cell directly affects the uniformity of the gas entering the flow channel. For example, after the gas enters the end, the flow is very biased to one side of the cavity, resulting in uneven flow distribution, which is easy to cause the gas to enter each flow channel. There is a large difference in the gas distribution of the gas, which in turn affects the performance of the battery

At the same time, the uneven distribution of gas flow will also cause excessive pressure loss of the gas at the inlet and outlet of the end, which will affect the gas flow and electrochemical reaction.

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