A topology multi-objective optimization method and system for high-power electric cooling multi-channel single-phase heat transfer and energy efficiency

Abstract

The application provides a high-power electric power cooling multi-channel single-phase heat transfer and energy efficiency topology multi-objective optimization method and system, and the method comprises the following steps: obtaining a design scene input condition, establishing a topology optimization model, solving a model output fluid and solid material distribution and a two-dimensional topology model; reconstructing a two-dimensional model to obtain a three-dimensional microchannel area model; sampling three-dimensional topology model variables, obtaining an optimal Latin hypercube after optimization, constructing a surrogate model; selecting new filling points according to a criterion to calculate and update a sample set and the surrogate model; optimizing total thermal resistance and pumping power conflict targets to obtain a Pareto optimal solution set. In the topology optimization stage, a microchannel two-dimensional section is selected as a design domain, a density method is used, average temperature and energy consumption are minimized as targets, an optimal material distribution configuration is generated, and a three-dimensional model is reconstructed. In the multi-objective optimization stage, a sampling is performed to construct a surrogate model, an EGO-PEI algorithm is used for optimization, and a Pareto optimal solution set is obtained.

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