Effect of corrugated wall combined with backward-facing step channel on fluid flow and heat transfer
The turbulent fluid flow and heat transfer were numerically studied through backward-facing step combined with various corrugated walls. The governing equation was solved using Finite Volume Method (FVM) and the SIMPLE algorithm was applied to investigate the effect of backward-facing step with corr...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020
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| Online Access: | http://psasir.upm.edu.my/id/eprint/88582/ http://psasir.upm.edu.my/id/eprint/88582/1/ABSTRACT.pdf |
| _version_ | 1848860649494413312 |
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| author | Hilo, Ali Kareem Abu Talib, Abd Rahim Iborra, Antonio Acosta Hameed Sultan, Mohamed Thariq Abdul Hamid, Mohd Faisal |
| author_facet | Hilo, Ali Kareem Abu Talib, Abd Rahim Iborra, Antonio Acosta Hameed Sultan, Mohamed Thariq Abdul Hamid, Mohd Faisal |
| author_sort | Hilo, Ali Kareem |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The turbulent fluid flow and heat transfer were numerically studied through backward-facing step combined with various corrugated walls. The governing equation was solved using Finite Volume Method (FVM) and the SIMPLE algorithm was applied to investigate the effect of backward-facing step with corrugated downstream on heat transfer characteristics. A constant heat flux was applied on the downstream wall, while the other walls were considered as adiabatic surfaces. Parameters such as corrugated design, amplitude height (1, 2, 3, 4 and 5 mm) and Reynolds number (Re) in the range of 5000 to 20,000 were used. The performance evaluation criteria (PEC) were estimated to show the heat transfer augmentation. The results indicated that using a corrugated wall with a backward-facing step increased significantly the heat transfer accompanied by a slight increase in the skin friction coefficient simultaneously. The best heat transfer augmentation was observed for the trapezoidal corrugation at 4 mm amplitude height and 20 mm pitch diameter. Combining the corrugated wall with backward-facing step enhanced the Nusselt number (Nu) up to 62% at Re = 5000. The performance evaluation criteria increased with the increase of amplitude height until it reached 4 mm and then decreased steeply. |
| first_indexed | 2025-11-15T12:48:35Z |
| format | Article |
| id | upm-88582 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T12:48:35Z |
| publishDate | 2020 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-885822021-12-22T01:52:42Z http://psasir.upm.edu.my/id/eprint/88582/ Effect of corrugated wall combined with backward-facing step channel on fluid flow and heat transfer Hilo, Ali Kareem Abu Talib, Abd Rahim Iborra, Antonio Acosta Hameed Sultan, Mohamed Thariq Abdul Hamid, Mohd Faisal The turbulent fluid flow and heat transfer were numerically studied through backward-facing step combined with various corrugated walls. The governing equation was solved using Finite Volume Method (FVM) and the SIMPLE algorithm was applied to investigate the effect of backward-facing step with corrugated downstream on heat transfer characteristics. A constant heat flux was applied on the downstream wall, while the other walls were considered as adiabatic surfaces. Parameters such as corrugated design, amplitude height (1, 2, 3, 4 and 5 mm) and Reynolds number (Re) in the range of 5000 to 20,000 were used. The performance evaluation criteria (PEC) were estimated to show the heat transfer augmentation. The results indicated that using a corrugated wall with a backward-facing step increased significantly the heat transfer accompanied by a slight increase in the skin friction coefficient simultaneously. The best heat transfer augmentation was observed for the trapezoidal corrugation at 4 mm amplitude height and 20 mm pitch diameter. Combining the corrugated wall with backward-facing step enhanced the Nusselt number (Nu) up to 62% at Re = 5000. The performance evaluation criteria increased with the increase of amplitude height until it reached 4 mm and then decreased steeply. Elsevier 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/88582/1/ABSTRACT.pdf Hilo, Ali Kareem and Abu Talib, Abd Rahim and Iborra, Antonio Acosta and Hameed Sultan, Mohamed Thariq and Abdul Hamid, Mohd Faisal (2020) Effect of corrugated wall combined with backward-facing step channel on fluid flow and heat transfer. Energy, 190. art. no. 116294. pp. 1-10. ISSN 0360-5442; ESSN: 1873-6785 https://www.sciencedirect.com/science/article/pii/S0360544219319899 10.1016/j.energy.2019.116294 |
| spellingShingle | Hilo, Ali Kareem Abu Talib, Abd Rahim Iborra, Antonio Acosta Hameed Sultan, Mohamed Thariq Abdul Hamid, Mohd Faisal Effect of corrugated wall combined with backward-facing step channel on fluid flow and heat transfer |
| title | Effect of corrugated wall combined with backward-facing step channel on fluid flow and heat transfer |
| title_full | Effect of corrugated wall combined with backward-facing step channel on fluid flow and heat transfer |
| title_fullStr | Effect of corrugated wall combined with backward-facing step channel on fluid flow and heat transfer |
| title_full_unstemmed | Effect of corrugated wall combined with backward-facing step channel on fluid flow and heat transfer |
| title_short | Effect of corrugated wall combined with backward-facing step channel on fluid flow and heat transfer |
| title_sort | effect of corrugated wall combined with backward-facing step channel on fluid flow and heat transfer |
| url | http://psasir.upm.edu.my/id/eprint/88582/ http://psasir.upm.edu.my/id/eprint/88582/ http://psasir.upm.edu.my/id/eprint/88582/ http://psasir.upm.edu.my/id/eprint/88582/1/ABSTRACT.pdf |