TY - JOUR TI - Optimized design of complex microchannel heat sink structure with triangular cavity m-type pins AU - Wang Aiyun AU - Pan Zhongliang JN - Thermal Science PY - 2026 VL - 30 IS - 2 SP - 1389 EP - 1401 PT - Article AB - In order to further improve the heat dissipation performance of micro-channels, a new triangular cavity M-type pin complex micro-channel heat sink structure design is proposed. Firstly, we take the distance between the cavity center and the pin center of the micro-channel heat sink, the pin width and the pin angle as design variables. The enhanced heat transfer factor of the micro-channel heat sink is used as the objective function. Secondly, in this paper, a quadratic regression model between the independent variables and the enhanced heat transfer factor of the micro-channel radiator is established by the response surface method, and the design variables are optimized by combining the genetic algorithm to maximize the enhanced heat transfer factor. The results show that the optimized micro-channel heat sink can achieve the optimal distribution of pressure field and temperature field, and the enhanced heat transfer factor can achieve the optimal value, which can significantly improve the heat dissipation performance of the micro-channel and provide an important reference for the subsequent micro-channel optimization design. DO - 10.2298/TSCI250517157W ER -