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Numerical study of heat transfer enhancement and fluid flow with inline common-flow-down vortex generators in a plate-fin heat exchanger
Article first published online: 10 MAR 2012
DOI: 10.1002/htj.20414
Copyright © 2012 Wiley Periodicals, Inc.
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How to Cite
Gupta, M. and Kasana, K.S. (2012), Numerical study of heat transfer enhancement and fluid flow with inline common-flow-down vortex generators in a plate-fin heat exchanger. Heat Trans. Asian Res., 41: 272–288. doi: 10.1002/htj.20414
Publication History
- Issue published online: 19 APR 2012
- Article first published online: 10 MAR 2012
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Keywords:
- longitudinal vortices;
- rectangular winglet;
- heat transfer augmentation
Abstract
Three-dimensional numerical simulations are performed on a plate-fin heat exchanger (with triangular fins as inserts between the plates) to evaluate the laminar heat transfer and fluid flow characteristics with longitudinal vortex generators (LVGs). The effect with an inline rectangular winglet pair (RWP) with a common-flow-down (CFD) configuration is studied. The numerical results indicate that the application of inline LVGs effectively enhances the heat transfer of the channel. The heat transfer further increases with the increase in the Reynolds number from 200 to 500 and angle of attack from β = 15° to 22.5°. The computations are also performed to find the best location for the second RWP. © 2012 Wiley Periodicals, Inc. Heat Trans Asian Res; Published online in Wiley Online Library (wileyonlinelibrary.com/journal/htj). DOI 10.1002/htj.20414