Multi-objective topology optimization of flow channels in liquid-cooled plates for battery thermal management system
摘要
This study utilized the multi-objective topology optimization (MOTO) method to optimize liquid-cooled plates, combined with the response surface methodology to analyze influencing factors and determine the optimal parameter combination. Specifically, a volume fraction of 0.6, an inlet velocity of 0.1 m/s, and an inlet temperature of 298.15 K are identified as the optimal parameters for the topology-optimized cooling plate (TOCP). Results show that the TOCP outperformed the traditional direct-channel cooling plate (DCCP) and its rounded-corner modified version (RDCCP) in heat dissipation, flow resistance, and temperature uniformity. The TOCP demonstrates a notable reduction in the battery’s temperature difference, with decreases of up to 63.46% compared to the DCCP and 53.48% compared to the RDCCP. In terms of hydraulic performance, the pressure difference of the TOCP is reduced by 14.82% relative to the DCCP and 12.67% relative to the RDCCP, effectively reducing fluid resistance by mitigating vortex formation. Moreover, the TOCP has a heat transfer coefficient of 1584.2 W m⁻2 K⁻1, showing increases of 31.3% and 4.3% compared to the DCCP and RDCCP, respectively. These improvements, along with a higher Nusselt number, highlight the TOCP’s superior convective heat transfer capacity and cooling performance.