Heat transfer and flow characteristics of fluid jets impinging on a surface with cavities
This paper examines the thermal enhancement potential of a novel technique for cooling a heated surface by fluid jet impingement. Instead of using a conventional flat impinging surface, the fluid jet is directed into a coaxial cylindrical cavity embedded in the heated surface. A numerical study is p...
| Main Authors: | , , |
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| Format: | Journal Article |
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Begell House Inc
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/47494 |
| _version_ | 1848757848291409920 |
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| author | King, Andrew Chandratilleke, Tilak Narayanaswamy, Ramesh |
| author_facet | King, Andrew Chandratilleke, Tilak Narayanaswamy, Ramesh |
| author_sort | King, Andrew |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This paper examines the thermal enhancement potential of a novel technique for cooling a heated surface by fluid jet impingement. Instead of using a conventional flat impinging surface, the fluid jet is directed into a coaxial cylindrical cavity embedded in the heated surface. A numerical study is performed to obtain the heat and fluid flow characteristics and to examine the parametric influence arising from the modified surface geometry. Comparisons are made with the thermal performance of conventional fluid jet impingement at a smooth heated surface. The results indicate a several-fold increase in heat transfer due to the presence of a cavity beneath the jet. It is noted that the degree of enhancement is primarily dependent on the cavity depth and jet Reynolds number. |
| first_indexed | 2025-11-14T09:34:37Z |
| format | Journal Article |
| id | curtin-20.500.11937-47494 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:34:37Z |
| publishDate | 2010 |
| publisher | Begell House Inc |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-474942017-09-13T15:59:55Z Heat transfer and flow characteristics of fluid jets impinging on a surface with cavities King, Andrew Chandratilleke, Tilak Narayanaswamy, Ramesh cavity jet impingment heat transfer enhancement This paper examines the thermal enhancement potential of a novel technique for cooling a heated surface by fluid jet impingement. Instead of using a conventional flat impinging surface, the fluid jet is directed into a coaxial cylindrical cavity embedded in the heated surface. A numerical study is performed to obtain the heat and fluid flow characteristics and to examine the parametric influence arising from the modified surface geometry. Comparisons are made with the thermal performance of conventional fluid jet impingement at a smooth heated surface. The results indicate a several-fold increase in heat transfer due to the presence of a cavity beneath the jet. It is noted that the degree of enhancement is primarily dependent on the cavity depth and jet Reynolds number. 2010 Journal Article http://hdl.handle.net/20.500.11937/47494 10.1615/JEnhHeatTransf.v17.i3.20 Begell House Inc restricted |
| spellingShingle | cavity jet impingment heat transfer enhancement King, Andrew Chandratilleke, Tilak Narayanaswamy, Ramesh Heat transfer and flow characteristics of fluid jets impinging on a surface with cavities |
| title | Heat transfer and flow characteristics of fluid jets impinging on a surface with cavities |
| title_full | Heat transfer and flow characteristics of fluid jets impinging on a surface with cavities |
| title_fullStr | Heat transfer and flow characteristics of fluid jets impinging on a surface with cavities |
| title_full_unstemmed | Heat transfer and flow characteristics of fluid jets impinging on a surface with cavities |
| title_short | Heat transfer and flow characteristics of fluid jets impinging on a surface with cavities |
| title_sort | heat transfer and flow characteristics of fluid jets impinging on a surface with cavities |
| topic | cavity jet impingment heat transfer enhancement |
| url | http://hdl.handle.net/20.500.11937/47494 |