ISSN : 1796-203X
Volume : 4    Issue : 11    Date : November 2009

CFD-based Study of Velocity Distribution among Multiple Parallel Microchannels
Minqiang Pan, Dehuai Zeng, Yong Tang, and Dongqing Chen
Page(s): 1133-1138
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A three-dimensional computational fluid dynamics (CFD) model was used to calculate the velocity
distribution among multiple parallel microchannels with triangle manifolds. The influences of
structural parameters on velocity distribution among microchannels were analyzed. The simulation
results showed that the velocity distribution became more uniform with larger microchannel length,
depth or smaller width. Larger horizontal ordinate, longitudinal ordinate and radius of inlet/outlet,
smaller lengths of bottom and side of symmetrical manifolds could favor obtaining narrow velocity
distribution among microchannels. Symmetrical manifold structure could achieve more uniform
velocity distribution among microchannels than that asymmetrical manifold structure.

Index Terms
computational fluid dynamics, velocity distribution, parallel microchannel, manifold