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Numerical simulation of drop deformation and breakup in shear flow

✍ Scribed by Lin Chang-Zhi; Guo Lie-Jin

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
946 KB
Volume
36
Category
Article
ISSN
1099-2871

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✦ Synopsis

Abstract

Three‐dimensional numerical simulation of the deformation and breakup of an isolated liquid drop suspended in immiscible viscous fluid under shear flow was performed with diffuse interface method. The governing equations of the model were described by Navier– Stokes– Cahn– Hilliard equations. The surface tension was treated as a modified stress. In this paper, a uniform staggered Cartesian grid was used. The transient Navier– Stokes equations were solved by an approximation projection method based on pressure increment formulation, while the Cahn– Hilliard equations were solved by a nonlinear full approximation multigrid method. The numerical results of the drop deformation and breakup were in good agreement with the experimental measurements. Therefore, the present model could be perfectly applied to study the mechanism of drop deformation and breakup. Β© 2007 Wiley Periodicals, Inc. Heat Trans Asian Res, 36(5): 286– 294, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/htj.20160

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