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An experimental investigation on the stability of viscous drops translating through a quiescent fluid

 

作者: C. J. Koh,   L. G. Leal,  

 

期刊: Physics of Fluids A  (AIP Available online 1990)
卷期: Volume 2, issue 12  

页码: 2103-2109

 

ISSN:0899-8213

 

年代: 1990

 

DOI:10.1063/1.857796

 

出版商: AIP

 

数据来源: AIP

 

摘要:

The evolution of the shape of an initially nonspherical drop translating at low Reynolds number through a quiescent fluid is investigated experimentally. It is found that the drop reverts to a spherical shape when the degree of initial deformation is small enough. However, drops that are highly deformed initially are shown to deform continuously. Specifically, a prolate drop breaks up into multiple droplets as it rises, while an oblate drop deforms into a double‐emulsion drop as it translates. The experimental results agree well with results obtained earlier from numerical simulations [Phys. Fluids A1, 1309 (1989)].

 

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