Representation of Deformable Bubbles by Analytically Defined Shapes in an Immersed Boundary Method

被引：5
|
作者：
Schwarz, S. [1 ]
Froehlich, J. [1 ]
机构：
[1] Tech Univ Dresden, Inst Fluid Mech, D-01062 Dresden, Germany
来源：
NUMERICAL ANALYSIS AND APPLIED MATHEMATICS (ICNAAM 2012), VOLS A AND B | 2012年 / 1479卷
关键词：
Multiphase flow; immersed boundary method; bubble shape; phase coupling; SIMULATION; FLOWS;
D O I：
10.1063/1.4756073
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
An ascending bubble is deformed by fluid loads while surface tension drives it towards a spherical shape. In contrast to a priori prescribed constant shapes, coupling of the particle shape to the surrounding liquid is realized here in the framework of an immersed boundary method. A method is proposed where the bubble shape is modelled by an ellipsoid of variable aspect ratio or by spherical harmonics.
引用
收藏
页码：104 / 108
页数：5
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