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在实验的基础上对液态金属钠沸腾两相流动传热特性进行理论研究。计算对象为环形流道。单相流动区域认为液态金属钠不可压缩;两相流动区域考虑钠蒸汽的可压缩性。两相流动区域选用均匀流模型,求解过程中采用迎风格式进行积分。将模型计算结果与相关实验数据进行对比,结果表明本文模型可用于计算液态金属钠沸腾两相流动传热特性,模型计算结果在一定程度上能完成对实验工作的拓展。
On the basis of experiment, the theoretical research on the heat transfer characteristics of liquid metal sodium boiling two-phase flow was carried out. The calculation object is a circular flow channel. Single-phase flow areas consider liquid sodium metal incompressible; the two-phase flow area accounts for the compressibility of sodium vapor. The uniform flow model is adopted in the two-phase flow area, and the windward integration is used in the solution process. Comparing the model calculation results with the related experimental data, the results show that the model can be used to calculate the heat transfer characteristics of liquid metal sodium boiling two-phase flow. The calculation results of the model to some extent can complete the experimental work.