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The effect of interfacial evaporation on heat and mass transfer of falling liquid film

The effect of interfacial evaporation on heat and mass transfer of falling liquid film
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摘要 Analysis of experimental data and estimation of the order of magnitude for interfacial mass diffusion have demonstrated that considerable excess evaporation exists on the free interface of falling liquid film, and that the capillary pressure caused by surface tension is the driving force of this excess interfacial evaporation, which we called the “capillarity-induced interfacial evaporation”. By correlating the experimental data, an empirical expression of the effective capillary radius, r\-e, is obtained with which the evaporative rate formula we derived and reported previously has been modified to improve the prediction of the critical heat flux for film breakdown. Comparisons with the available predicting models show that our modified equation can predict the experimental results with much lower relative deviation.
出处 《Science China(Technological Sciences)》 SCIE EI CAS 2001年第2期123-130,共8页 中国科学(技术科学英文版)
基金 the Science Funds of Ministry of Education of China and the National Natural Science Foundation of China (Grant No. 59995550-3)
关键词 falling liquid film interfacial evaporation of liquid film CAPILLARITY 掉落的液体电影;液体电影的界面的蒸发;毛细作用;
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参考文献10

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