Three-dimensional simulation of instabilities and rivulet formation in heated falling films

被引:25
作者
Ramaswamy, B
Krishnamoorthy, S
Joo, SW
机构
[1] COMPUTAT FLUID DYNAM RES CORP, HUNTSVILLE, AL 35805 USA
[2] YEUNGNAM UNIV, SCH MECH ENGN, KYONGSAN 712749, SOUTH KOREA
基金
美国国家科学基金会;
关键词
D O I
10.1006/jcph.1996.5512
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
A thin heated film draining on an inclined plate has been studied by integrating the three-dimensional conservation equations for mass, momentum, and energy in an arbitrary Lagrangian Eulerian frame of reference. The kinematic equation is solved to precisely update the interface location. The temporal discretization is done using a projection scheme and the spatial discretization is done using a finite element method. Detailed analysis of nonlinear dynamics associated with the rivulet formation is performed for layers subjected to both thermocapillary and surface-wave instabilities. Comparisons with long-wave theory are made to validate the numerical scheme. (C) 1997 Academic Press.
引用
收藏
页码:70 / 88
页数:19
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