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建立了微重力下相变蓄热容器的仿真计算模型,根据蓄热容器内凝固过程的仿真结果建立了更加符合实际的空穴分布模型,对相变蓄热过程进行了仿真计算。对比分析了该文空穴模型与忽略空穴、简单空穴模型对应的仿真结果,证明空穴分布形式对于蓄热容器内的相变蓄热过程的显著影响。通过建立更加真实的空穴分布模型提高了相变蓄热过程仿真计算的准确性,对蓄热容器的设计改进具有积极的指导意义。
The simulation calculation model of phase change heat storage container under microgravity was established. According to the simulation results of solidification process in the heat storage container, a more realistic hole distribution model was established and the phase change heat storage process was simulated. The simulation results of this model are compared with those of ignoring holes and simple cavities. The results show that the distribution of cavities has a significant effect on the phase-change thermal storage in the thermal storage vessel. By establishing a more realistic hole distribution model, the accuracy of simulation calculation of phase change heat storage process is improved, which has a positive guiding significance for the design improvement of heat storage vessel.