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毛细压力对薄液膜蒸发的影响 被引量:2

Influence of Capillary Pressure on the Evaporation of Thin Liquid Films
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摘要 介绍了一个考虑毛细压力对液膜在垂直平板上蒸发影响的模型.导出了此过程的控制方程组并用可变步长的Runge-Kutta方法进行数值积分.数值结果与Nusselt膜冷凝理论的分析解进行比较,当液膜变得足够薄时,结果与Nusselt膜理论产生显著偏差. A model is presented that considers the influence of capillary pressure on the evaporation of a liquid film on a vertical flat plate. The governing equations are derived and numerically integrated with a step variable Runge Kutta method. The numerical results are compared with the analytical solution from Nusselt′s film condensation theory. The deviation from the Nusselt film theory becomes very prominent when the liquid film becomes thin enough. This can be aributed to the fact that the Nusselt film theory does not consider the influence of capillary pressure on the shape of the liquid film.
机构地区 东北大学
出处 《东北大学学报(自然科学版)》 EI CAS CSCD 1996年第3期261-265,共5页 Journal of Northeastern University(Natural Science)
关键词 毛细压力 薄液膜 蒸发 液膜 传热 传质 capillary pressure,thin film,evaporation.
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参考文献1

  • 1Guo Z,Int J Heat Mass Transfer,1994年,37卷,1641页

同被引文献28

  • 1张丽春,马同泽,葛新石.矩形槽道微小型平板热管传热性能的理论分析[J].工程热物理学报,2004,25(S1):143-146. 被引量:4
  • 2马永锡,张红,庄骏.振荡热管——一种新型独特的传热元件[J].化工进展,2004,23(9):1008-1013. 被引量:22
  • 3马永锡,张红,苏磊.振荡热管内的振荡及传热传质特性[J].化工学报,2005,56(12):2265-2270. 被引量:15
  • 4马永锡,张红.振荡热管当量导热系数的理论推导与分析[J].化学工程,2006,34(10):17-20. 被引量:3
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