冰箱冷藏室温度场和流场的数值模拟与结构优化

Numerical Simulation of Temperature and Velocity Fields in Fresh Food Storage Compartment and Structure Optimization for Refrigerator

采用CFD数值模拟计算的方法,对现有冰箱冷藏室的温度场和速度场进行了计算,并借助实验验证了所采用的数值计算模型的适用性。在此基础上提出了不同壁面温度分布的其他3种方案。当采用冷藏室整个后壁温度分布从上到下逐渐变大的方案时,与现有的市场上采用的主流方案相比,较大的改善了冷藏箱内温度场的均匀性,为冰箱冷藏室蒸发器的设计提供了参考。

The temperature and velocity fields in the fresh food storage compartment of a refrigerator were conducted with numerical method of computational fluid dynamics （CFD）, and the correctness of the numerical calculation model used in this paper was verified by experiment. Based on the numerical model, the other three schemes with different wall temperature distributions were proposed. The equality of the temperature field was greatly improved compared to the existing commercial solutions when the scheme that wall temperature increasing from the top to the bottom was adopted, which provides reference for the evaporator design of the fresh food storage compartment of the refrigerator.