Entropy Generation Analysis of Power-Law Non-Newtonian Fluid Flow Caused by Micropatterned Moving Surface
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 equa...
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| Format: | Article |
| Language: | English |
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Hindawi Publishing Corporation
2014
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| Online Access: | http://eprints.intimal.edu.my/42/ http://eprints.intimal.edu.my/42/1/Entropy%20Generation%20Analysis%20of%20Power-Law%20Non-Newtonian%20Fluid%20Flow%20Caused%20by%20Micropatterned%20Moving%20Surface.pdf |
| _version_ | 1848766383067758592 |
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| author | Yazdi, M. H. Hashim, I. Fudholi, A. Ooshaksaraei, P. Sopian, K. |
| author_facet | Yazdi, M. H. Hashim, I. Fudholi, A. Ooshaksaraei, P. Sopian, K. |
| author_sort | Yazdi, M. H. |
| building | INTI Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T11:50:16Z |
| format | Article |
| id | intimal-42 |
| institution | INTI International University |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:50:16Z |
| publishDate | 2014 |
| publisher | Hindawi Publishing Corporation |
| recordtype | eprints |
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| spelling | intimal-422016-10-06T01:59:34Z http://eprints.intimal.edu.my/42/ Entropy Generation Analysis of Power-Law Non-Newtonian Fluid Flow Caused by Micropatterned Moving Surface Yazdi, M. H. Hashim, I. Fudholi, A. Ooshaksaraei, P. Sopian, K. TA Engineering (General). Civil engineering (General) 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. Hindawi Publishing Corporation 2014-07-17 Article PeerReviewed text en http://eprints.intimal.edu.my/42/1/Entropy%20Generation%20Analysis%20of%20Power-Law%20Non-Newtonian%20Fluid%20Flow%20Caused%20by%20Micropatterned%20Moving%20Surface.pdf 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. http://dx.doi.org/10.1155/2014/141795 10.1155/2014/141795 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Yazdi, M. H. Hashim, I. Fudholi, A. Ooshaksaraei, P. Sopian, K. Entropy Generation Analysis of Power-Law Non-Newtonian Fluid Flow Caused by Micropatterned Moving Surface |
| title | Entropy Generation Analysis of Power-Law Non-Newtonian Fluid Flow Caused by Micropatterned Moving Surface |
| title_full | Entropy Generation Analysis of Power-Law Non-Newtonian Fluid Flow Caused by Micropatterned Moving Surface |
| title_fullStr | Entropy Generation Analysis of Power-Law Non-Newtonian Fluid Flow Caused by Micropatterned Moving Surface |
| title_full_unstemmed | Entropy Generation Analysis of Power-Law Non-Newtonian Fluid Flow Caused by Micropatterned Moving Surface |
| title_short | Entropy Generation Analysis of Power-Law Non-Newtonian Fluid Flow Caused by Micropatterned Moving Surface |
| title_sort | entropy generation analysis of power-law non-newtonian fluid flow caused by micropatterned moving surface |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://eprints.intimal.edu.my/42/ http://eprints.intimal.edu.my/42/ http://eprints.intimal.edu.my/42/ http://eprints.intimal.edu.my/42/1/Entropy%20Generation%20Analysis%20of%20Power-Law%20Non-Newtonian%20Fluid%20Flow%20Caused%20by%20Micropatterned%20Moving%20Surface.pdf |