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http://dx.doi.org/10.3795/KSME-B.2009.33.10.783

Parametric Study on the Characteristics of Multiphase Laminar Flow with Density Difference in Various Microchannels  

Paek, Seung-Ho (중앙대학교 대학원 기계공학부)
Kim, Dong-Sung (중앙대학교 기계공학부)
Choi, Young-Ki (중앙대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.33, no.10, 2009 , pp. 783-788 More about this Journal
Abstract
In this paper, we have performed a parametric study on the characteristics of multiphase laminar flow with density difference in various microchannels. The interface between multiphase fluids is rotated by the gravitational forces induced by density difference. The numerical simulations were carried out via commercial CFD package to study the characteristics of multiphase laminar flow. The results of the numerical simulations in this study were verified by comparing with the previously reported experimental results in the literature. We have also proposed a new dimensionless relationship between dimensionless rotation angle of interface and dimensionless parameters are proposed for square microchannels with various aspect ratios. The dimensionless relationship could be widely applied to the reliable design of various microfluidic devices dealing with multiphase laminar flow.
Keywords
Microfluidics; Multiphase Laminar Flow; Parametric Study;
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