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http://dx.doi.org/10.3795/KSME-B.2005.29.2.232

Prediction of Degree of Mixing for Insoluble Solution with Vortex Index in a Passive Micromixer  

Cho Il-dae (한양대학교 대학원 기계공학과)
Kim Bum-joong (한양대학교 대학원 기계공학과)
Maeng Joo-sung (한양대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.29, no.2, 2005 , pp. 232-238 More about this Journal
Abstract
The 'Mixing Index($D_I$)' is used as a conventional guidance measuring the degree of mixing for multiphase flows. For the case when insoluble solutions flow in a passive micromixer, a new method to calculate $D_I$ is proposed. The 'Vortex Index(${\Omega}_I$)' is suggested and formulated. We infer that ${\Omega}_I$ relates to the degree of chaotic advection. Various arbitrary shaped microchannels were tested to calculate the $D_I\;and\;{\Omega}_I$, and then a simple algebraic equation, $D_I=Aexp(B{\Omega}_I)$, is obtained. This equation may be used instead of the conventional partial differential equation, concentration equation, to estimate the degree of mixing.
Keywords
Vortex Index; Mixing Index; Chaotic Advection; Passive Micromixer; Insoluble Solution;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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