中文摘要：

针对大功率晶体管的散热问题，对两种方案的水冷散热器设计进行了热分析和ANSYS仿真分析。首先；通过热力学和流体力学分析得到了散热器传热过程中ANSYS参数的计算方法；然后对水冷散热器的物理模型进行了分析，并对两种散热器进行仿真研究；结果表明：在并联管路散热器设计中适当添加中间管路并选择适当的直径和提高人口流量有利于提高散热效果。

英文摘要：

Due to the problem of radiating on high power transistors, thermal analysis and simulation of the hydro-cooling-radiator of high power transistors based on ANSYS was introduced. The radiating and hydromeehanies theory were presented generally, the radiating model of high power transistors with a hydro-cooling-radiator was built, and two kinds of hydro-cooling-radiators were analyzed and emulated. The results indicate that adding extra tube with optimum diameter and increasing flow on inlet could improve the effect of radiating.