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概述了6英寸晶闸管的水冷散热系统及模型,利用Fluent软件,采用有限元分析方法和标准k-ε湍流模型,通过求解三维N-S方程和三维温度场模型模拟了散热器的散热过程。仿真分析了散热器台面的温度分布、流场与流动阻力、功率和流量变化时对热阻和流阻的影响。提出了散热器的优化设计方案,进行了流动与传热模拟。通过与前期试验的对比分析可知,采用Fluent仿真软件能较真实地反映水冷散热器的散热过程及内部流体的复杂流动过程,可为散热器的设计及改进提供理论依据。
The cooling system and model of 6-inch thyristor are summarized. The cooling process of the radiator is simulated by Fluent software, finite element method and standard k-ε turbulence model by solving three-dimensional N-S equation and three-dimensional temperature field model. Simulation analysis of the radiator surface temperature distribution, flow field and flow resistance, power and flow changes when the thermal resistance and flow resistance. Proposed the optimal design of the radiator, the flow and heat transfer simulation. Through the comparison with previous experiments, we can see that using Fluent simulation software can more accurately reflect the cooling process of water-cooled radiator and the complex flow of internal fluid, which can provide theoretical basis for the design and improvement of the radiator.