Comparison of full surface local heat transfer coefficient and flow field studies beneath sharp-edged and radiused entry impinging jets
Full heat transfer coefficient and static pressure distributions have been measured on the target surface under impinging jets formed by sharp-edged and large entry radius holes. These geometries are representative of impingement holes in a gas turbine blade manufactured by laser cutting and by cast...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
ASME
1996
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| _version_ | 1797084292625465344 |
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| author | Gillespie, D Guo, S Wang, Z Ireland, P Kohler, S |
| author_facet | Gillespie, D Guo, S Wang, Z Ireland, P Kohler, S |
| author_sort | Gillespie, D |
| collection | OXFORD |
| description | Full heat transfer coefficient and static pressure distributions have been measured on the target surface under impinging jets formed by sharp-edged and large entry radius holes. These geometries are representative of impingement holes in a gas turbine blade manufactured by laser cutting and by casting, respectively. Target surface heat transfer has been measured in a large scale perspex rig using both the transient liquid crystal technique and hot thin film gauges. A range of jet Reynolds numbers, representative of engine conditions, has been investigated. The velocity variation has been calculated from static pressure measurements on the impingement target surface. The heat transfer to the target surface is discussed in terms of the interpreted flow field. |
| first_indexed | 2024-03-07T01:53:26Z |
| format | Journal article |
| id | oxford-uuid:9ae9e90f-76a2-428a-a55a-7d309fc58644 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:53:26Z |
| publishDate | 1996 |
| publisher | ASME |
| record_format | dspace |
| spelling | oxford-uuid:9ae9e90f-76a2-428a-a55a-7d309fc586442022-03-27T00:24:45ZComparison of full surface local heat transfer coefficient and flow field studies beneath sharp-edged and radiused entry impinging jetsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9ae9e90f-76a2-428a-a55a-7d309fc58644EnglishSymplectic Elements at OxfordASME1996Gillespie, DGuo, SWang, ZIreland, PKohler, SFull heat transfer coefficient and static pressure distributions have been measured on the target surface under impinging jets formed by sharp-edged and large entry radius holes. These geometries are representative of impingement holes in a gas turbine blade manufactured by laser cutting and by casting, respectively. Target surface heat transfer has been measured in a large scale perspex rig using both the transient liquid crystal technique and hot thin film gauges. A range of jet Reynolds numbers, representative of engine conditions, has been investigated. The velocity variation has been calculated from static pressure measurements on the impingement target surface. The heat transfer to the target surface is discussed in terms of the interpreted flow field. |
| spellingShingle | Gillespie, D Guo, S Wang, Z Ireland, P Kohler, S Comparison of full surface local heat transfer coefficient and flow field studies beneath sharp-edged and radiused entry impinging jets |
| title | Comparison of full surface local heat transfer coefficient and flow field studies beneath sharp-edged and radiused entry impinging jets |
| title_full | Comparison of full surface local heat transfer coefficient and flow field studies beneath sharp-edged and radiused entry impinging jets |
| title_fullStr | Comparison of full surface local heat transfer coefficient and flow field studies beneath sharp-edged and radiused entry impinging jets |
| title_full_unstemmed | Comparison of full surface local heat transfer coefficient and flow field studies beneath sharp-edged and radiused entry impinging jets |
| title_short | Comparison of full surface local heat transfer coefficient and flow field studies beneath sharp-edged and radiused entry impinging jets |
| title_sort | comparison of full surface local heat transfer coefficient and flow field studies beneath sharp edged and radiused entry impinging jets |
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