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Dropwise condensation heat transfer model with liquid-solid surface free energy difference effect
Author(s): 
Pages: 1626-1632
Year: Issue:  9
Journal: JOURNAL OF CHEMICAL INDUSTRY AND ENGINEERING(CHINA)

Keyword:  滴状冷凝传热模型接触角脱落直径液固界面效应;
Abstract: 针对液固界面相互作用对滴状冷凝传热的影响,以Rose滴状冷凝传热模型为基础,考虑接触角、脱落直径对冷凝传热的影响,对滴状冷凝过程中液滴空间序列上的构象,作时间序列上的重构,建立了包含液固界面效应的滴状冷凝传热模型.模型计算结果表明液固表面自由能差越大、接触角滞后越小则越有利于冷凝传热.为滴状冷凝文献数据间存在差异的原因提供了一个新的解释,即液固界面效应的影响.模型可计算得到在不同界面条件下的不同传热结果,模型计算结果与Rose实验值以及本文滴状冷凝传热实验较为吻合.
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