Yazdi, M. H. and Hashim, I. and Fudholi, A. and Ooshaksaraei, P. and Sopian, K. (2014) Entropy Generation Analysis of Power-Law Non-Newtonian Fluid Flow Caused by Micropatterned Moving Surface. Mathematical Problems in Engineering, 2014.
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Entropy Generation Analysis of Power-Law Non-Newtonian Fluid Flow Caused by Micropatterned Moving Surface.pdf - Published Version Download (2MB) | Preview |
Abstract
In the present study, the first and second law analyses of power-law non-Newtonian flow over embedded open parallel microchannels within micropatterned permeable continuous moving surface are examined at prescribed surface temperature. A similarity transformation is used to reduce the governing equations to a set of nonlinear ordinary differential equations. The dimensionless entropy generation number is formulated by an integral of the local rate of entropy generation along the width of the surface based on an equal number of microchannels and no-slip gaps interspersed between those microchannels. The velocity, the temperature, the velocity gradient, and the temperature gradient adjacent to the wall are substituted into this equation resulting from the momentum and energy equations obtained numerically by Dormand-Prince pair and shooting method. Finally, the entropy generation numbers, as well as the Bejan number, are evaluated. It is noted that the presence of the shear thinning (pseudoplastic) fluids creates entropy along the surface, with an opposite effect resulting from shear thickening (dilatant) fluids.
| Item Type: | Article |
|---|---|
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering and Quantity Surveying |
| Depositing User: | Unnamed user with email masilah.mansor@newinti.edu.my |
| Date Deposited: | 15 Jan 2016 08:13 |
| Last Modified: | 06 Oct 2016 01:59 |
| URI: | http://eprints.intimal.edu.my/id/eprint/42 |
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