Record Details

Numerical simulation of flow through microchannels with designed roughness

DSpace at IIT Bombay

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Field Value
 
Title Numerical simulation of flow through microchannels with designed roughness
 
Creator RAWOOL, AS
MITRA, SK
KANDLIKAR, SG
 
Subject heat-transfer
microchannel
numerical
obstructions
surface roughness
pitch
 
Description A three-dimensional numerical simulation of flow through serpentine microchannels with designed roughness in form of obstructions placed along the channels walls is conducted here. CFD-ACE+ is used for the numerical simulations. The effect of the roughness height (surface roughness), geometry, Reynolds number on the friction factor is investigated. It is found that the friction factor increases in a nonlinear fashion with the increase in obstruction height. The friction factor is more for rectangular and triangular obstructions and it decreases as the obstruction geometry is changed to trapezoidal. It is observed that the obstruction geometry, i.e., aspect ratio plays an important role in prediction of friction factor in rough channels. It is also found that the pressure drop decreases with the increase in the roughness pitch. Hence, the roughness pitch is an important design parameter for microchannels.
 
Publisher SPRINGER HEIDELBERG
 
Date 2011-08-30T05:07:50Z
2011-12-26T12:58:46Z
2011-12-27T05:49:17Z
2011-08-30T05:07:50Z
2011-12-26T12:58:46Z
2011-12-27T05:49:17Z
2006
 
Type Article
 
Identifier MICROFLUIDICS AND NANOFLUIDICS, 2(3), 215-221
1613-4982
http://dx.doi.org/10.1007/s10404-005-0064-5
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12202
http://hdl.handle.net/10054/12202
 
Language en