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本文基于地面重力条件下的导热控制微分方程,采用焓法对相变材料容器进行了二维数值建模与仿真,结合重力作用的特点,在同时考虑空穴和自然对流的情况下,对重力条件下热管吸热器蓄热容器相变传热进行了模拟计算,分析了蓄热容器内部的温度场和热性能,并将计算结果同国外相关实验结果进行了比较,验证了重力条件下计算模型的合理性与准确性,为地面热管吸热器高温固液相变蓄热实验提供了有力的分析依据.
In this paper, based on the differential equations of thermal conductivity under surface gravity conditions, the two-dimensional numerical modeling and simulation of phase change material container were carried out by enthalpy method. Combined with the characteristics of gravity, considering both the hole and the natural convection, The heat transfer in heat storage vessel of heat pipe heat sink was simulated and the temperature field and thermal performance inside the heat storage vessel were analyzed. The calculation results were compared with the relevant experimental results in foreign countries, The rationality and accuracy of the model provide a powerful analytical basis for the high temperature solid-liquid phase heat storage experiment of ground heat pipe heat sink.