Nanofluid cooling of a hot rotating circular cylinder employing cross-flow channel cooling on the upper part and multi-jet impingement cooling on the lower part
| dc.contributor.author | Selimefendigil F. | |
| dc.contributor.author | Larguech S. | |
| dc.contributor.author | Ghachem K. | |
| dc.contributor.author | Albalawi H. | |
| dc.contributor.author | Alshammari B.M. | |
| dc.contributor.author | Labidi T. | |
| dc.contributor.author | Kolsi L. | |
| dc.date.accessioned | 2025-04-10T11:02:24Z | |
| dc.date.available | 2025-04-10T11:02:24Z | |
| dc.date.issued | 2024 | |
| dc.description.abstract | This study explores the convective cooling features of a hot rotating cylinder by using the combined utilization of cross-flow on the upper part and multi-jet impingement on the bottom part. The analysis is performed for a range of jet Reynolds number (Re) values (between 100 and 500), cross-flow Re values (between 100 and 1000), rotational Re values (between −1000 and 1000), cylinder size (between 0.25wj and 3wj in radius), and center placement in the y direction (between −1.5wj and 1.5wj). When the cylinder is not rotating, the average Nu increment becomes 102% at the highest jet Re, while it becomes 140.82% at the highest cross-flow Re. When rations become active, the impacts of cross-flow and jet impingement cooling become slight. As compared to a motionless cylinder, at the highest speed of the rotating cylinder, the average Nu rises by about 357% to 391%. For clockwise rotation of the cylinder, a lager cylinder results an increase in the average Nu by about 86.3%. At the lowest and highest cross-flow impinging jet Re value combinations, cooling performance improvement becomes a factor of 8.1 and 2, respectively. When the size of the cylinder changes, entropy generation becomes significant, while the vertical location of the cylinder has a slight impact on entropy generation. © 2024 Author(s). | |
| dc.identifier.DOI-ID | 10.1063/5.0203560 | |
| dc.identifier.uri | http://hdl.handle.net/20.500.14701/44011 | |
| dc.publisher | American Institute of Physics | |
| dc.title | Nanofluid cooling of a hot rotating circular cylinder employing cross-flow channel cooling on the upper part and multi-jet impingement cooling on the lower part | |
| dc.type | Article |