Entropy Generation During Fluid Flow Between Two Parallel Plates With Moving Bottom Plate
Abstract: Two dimensional numerical analysis of entropy generation during transient convective heat transfer for laminar flow between two parallel plates has been investigated. The fluid is incompressible and Newtonian and the flow is the hydrodynamically and thermally developing. The plates are hel...
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| Format: | Article |
| Language: | English |
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MDPI AG
2003-12-01
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| Series: | Entropy |
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| Online Access: | http://www.mdpi.com/1099-4300/5/5/506/ |
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| author | M. Murat Yalçÿn Birsen Sülüs Mehmet S. Ercan Latife Berrin Erbay |
| author_facet | M. Murat Yalçÿn Birsen Sülüs Mehmet S. Ercan Latife Berrin Erbay |
| author_sort | M. Murat Yalçÿn |
| collection | DOAJ |
| description | Abstract: Two dimensional numerical analysis of entropy generation during transient convective heat transfer for laminar flow between two parallel plates has been investigated. The fluid is incompressible and Newtonian and the flow is the hydrodynamically and thermally developing. The plates are held at constant equal temperatures higher than that of the fluid. The bottom plate moves in either parallel or in inverse direction to the flow. The governing equations of the transient convective heat transfer are written in two-dimensional Cartesian coordinates and solved by the finite volume method with SIMPLE algorithm. The solutions are carried for Reynolds numbers of 102, 5x102 and 103 and Prandtl number of 1. After the flow field and the temperature distributions are obtained, the entropy values and the sites initiating the entropy generation are investigated. The results have indicated that the number of the entropy generation has its highest value at the highest Reynolds and Br/Ω values, which is obtained at counter motion of the lower plate. The lowest average number of the entropy generation on the bottom plate is obtained in parallel motion. The corners of the channel plates at the entrance play the role of active sites where the generation of entropy is triggered. |
| first_indexed | 2024-04-13T06:11:06Z |
| format | Article |
| id | doaj.art-c0cef9e6532047a291169587418ef2a9 |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-04-13T06:11:06Z |
| publishDate | 2003-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-c0cef9e6532047a291169587418ef2a92022-12-22T02:59:03ZengMDPI AGEntropy1099-43002003-12-015550651810.3390/e5050506Entropy Generation During Fluid Flow Between Two Parallel Plates With Moving Bottom PlateM. Murat YalçÿnBirsen SülüsMehmet S. ErcanLatife Berrin ErbayAbstract: Two dimensional numerical analysis of entropy generation during transient convective heat transfer for laminar flow between two parallel plates has been investigated. The fluid is incompressible and Newtonian and the flow is the hydrodynamically and thermally developing. The plates are held at constant equal temperatures higher than that of the fluid. The bottom plate moves in either parallel or in inverse direction to the flow. The governing equations of the transient convective heat transfer are written in two-dimensional Cartesian coordinates and solved by the finite volume method with SIMPLE algorithm. The solutions are carried for Reynolds numbers of 102, 5x102 and 103 and Prandtl number of 1. After the flow field and the temperature distributions are obtained, the entropy values and the sites initiating the entropy generation are investigated. The results have indicated that the number of the entropy generation has its highest value at the highest Reynolds and Br/Ω values, which is obtained at counter motion of the lower plate. The lowest average number of the entropy generation on the bottom plate is obtained in parallel motion. The corners of the channel plates at the entrance play the role of active sites where the generation of entropy is triggered.http://www.mdpi.com/1099-4300/5/5/506/laminar flowparallel plateentropy generation |
| spellingShingle | M. Murat Yalçÿn Birsen Sülüs Mehmet S. Ercan Latife Berrin Erbay Entropy Generation During Fluid Flow Between Two Parallel Plates With Moving Bottom Plate Entropy laminar flow parallel plate entropy generation |
| title | Entropy Generation During Fluid Flow Between Two Parallel Plates With Moving Bottom Plate |
| title_full | Entropy Generation During Fluid Flow Between Two Parallel Plates With Moving Bottom Plate |
| title_fullStr | Entropy Generation During Fluid Flow Between Two Parallel Plates With Moving Bottom Plate |
| title_full_unstemmed | Entropy Generation During Fluid Flow Between Two Parallel Plates With Moving Bottom Plate |
| title_short | Entropy Generation During Fluid Flow Between Two Parallel Plates With Moving Bottom Plate |
| title_sort | entropy generation during fluid flow between two parallel plates with moving bottom plate |
| topic | laminar flow parallel plate entropy generation |
| url | http://www.mdpi.com/1099-4300/5/5/506/ |
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