Second Law Analysis of a non-Newtonian Laminar Falling Liquid Film Along an Inclined Heated Plate
The second law analysis of heat transfer of a non-Newtonian, laminar fallingliquid film along an inclined heated plate is investigated. The upper surface of the liquidfilm is considered free and adiabatic. Velocity and temperature profiles are obtainedanalytically and used to compute the entropy gen...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2007-03-01
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| Series: | Entropy |
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| Online Access: | http://www.mdpi.com/1099-4300/9/1/30/ |
| _version_ | 1798041959934197760 |
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| author | David M. Pratt Rama Subba Reddy Gorla |
| author_facet | David M. Pratt Rama Subba Reddy Gorla |
| author_sort | David M. Pratt |
| collection | DOAJ |
| description | The second law analysis of heat transfer of a non-Newtonian, laminar fallingliquid film along an inclined heated plate is investigated. The upper surface of the liquidfilm is considered free and adiabatic. Velocity and temperature profiles are obtainedanalytically and used to compute the entropy generation number (Ns), irreversibility ratio (Φ) and the Bejan number (Be) for several values of the viscous dissipation parameter(Br -1), viscosity index (n) and the dimensionless axial distance (X). The Bejan numberincreases in the transverse direction and decreases as the viscous dissipation parameter(BrΩ -1) increases. The numerical results show that the Bejan number decreases as theviscous dissipation parameter (BrΩ -1), Peclet number (Pe) and the viscosity index (n)increase. |
| first_indexed | 2024-04-11T22:28:51Z |
| format | Article |
| id | doaj.art-e64eed79c8bb493aa0c3d37e0351f6d8 |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-04-11T22:28:51Z |
| publishDate | 2007-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-e64eed79c8bb493aa0c3d37e0351f6d82022-12-22T03:59:34ZengMDPI AGEntropy1099-43002007-03-0191304110.3390/e9010030Second Law Analysis of a non-Newtonian Laminar Falling Liquid Film Along an Inclined Heated PlateDavid M. PrattRama Subba Reddy GorlaThe second law analysis of heat transfer of a non-Newtonian, laminar fallingliquid film along an inclined heated plate is investigated. The upper surface of the liquidfilm is considered free and adiabatic. Velocity and temperature profiles are obtainedanalytically and used to compute the entropy generation number (Ns), irreversibility ratio (Φ) and the Bejan number (Be) for several values of the viscous dissipation parameter(Br -1), viscosity index (n) and the dimensionless axial distance (X). The Bejan numberincreases in the transverse direction and decreases as the viscous dissipation parameter(BrΩ -1) increases. The numerical results show that the Bejan number decreases as theviscous dissipation parameter (BrΩ -1), Peclet number (Pe) and the viscosity index (n)increase.http://www.mdpi.com/1099-4300/9/1/30/Second lawFalling liquid filmheat transferNon-Newtonian fluidsBejan number. |
| spellingShingle | David M. Pratt Rama Subba Reddy Gorla Second Law Analysis of a non-Newtonian Laminar Falling Liquid Film Along an Inclined Heated Plate Entropy Second law Falling liquid film heat transfer Non-Newtonian fluids Bejan number. |
| title | Second Law Analysis of a non-Newtonian Laminar Falling Liquid Film Along an Inclined Heated Plate |
| title_full | Second Law Analysis of a non-Newtonian Laminar Falling Liquid Film Along an Inclined Heated Plate |
| title_fullStr | Second Law Analysis of a non-Newtonian Laminar Falling Liquid Film Along an Inclined Heated Plate |
| title_full_unstemmed | Second Law Analysis of a non-Newtonian Laminar Falling Liquid Film Along an Inclined Heated Plate |
| title_short | Second Law Analysis of a non-Newtonian Laminar Falling Liquid Film Along an Inclined Heated Plate |
| title_sort | second law analysis of a non newtonian laminar falling liquid film along an inclined heated plate |
| topic | Second law Falling liquid film heat transfer Non-Newtonian fluids Bejan number. |
| url | http://www.mdpi.com/1099-4300/9/1/30/ |
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