Topology Optimization Design of Liquid-Cooled Radiator Based on Variable Density Method

Liquid-cooled radiator has the advantages of high heat exchange efficiency and uniform temperature distribution, which makes it widely used in the thermal management system of electronic equipment. The structure of the cooling channels in the liquid-cooled radiator is a significant factor affecting the cooling performance of the radiator. In order to improve the comprehensive heat exchange efficiency of the liquid-cooled radiator, this paper uses the topology optimization method to design the layout of the flow channels. The variable density method is employed to study the problem of heat transfer maximization. Moreover, the effects of the pressure difference and heat generation coefficient of heat source on the optimization results are investigated. The results show that in the optimization design, with the increase of the pressure difference or the heat transfer coefficient of the heat source, the flow channel structure becomes more complex, and the amount of heat transfer of the radiator is increased.