Heat transfer measurements to a gas turbine cooling passage with inclined ribs
The local heat transfer coefficient distribution over all four walls of a large-scale model of a gas turbine cooling passage have been measured in great detail. A new method of determining the heat transfer coefficient to the rib surface has been developed and the contribution of the rib, at 5 perce...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
1998
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| _version_ | 1826264733066461184 |
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| author | Wang, Z Ireland, P Kohler, S Chew, J |
| author_facet | Wang, Z Ireland, P Kohler, S Chew, J |
| author_sort | Wang, Z |
| collection | OXFORD |
| description | The local heat transfer coefficient distribution over all four walls of a large-scale model of a gas turbine cooling passage have been measured in great detail. A new method of determining the heat transfer coefficient to the rib surface has been developed and the contribution of the rib, at 5 percent blockage, to the overall roughened heat transfer coefficient was found to be considerable. The vortex-dominated flow field was interpreted from the detailed form of the measured local heat transfer contours. Computational Fluid Dynamics calculations support this model of the flow and yield friction factors that agree with measured values. Advances in the heat transfer measuring technique and data analysis procedure that confirm the accuracy of the transient method are described in full. |
| first_indexed | 2024-03-06T20:12:35Z |
| format | Journal article |
| id | oxford-uuid:2b12a5b9-07c6-4d34-ae6b-96983b1d3a6b |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:12:35Z |
| publishDate | 1998 |
| record_format | dspace |
| spelling | oxford-uuid:2b12a5b9-07c6-4d34-ae6b-96983b1d3a6b2022-03-26T12:28:45ZHeat transfer measurements to a gas turbine cooling passage with inclined ribsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2b12a5b9-07c6-4d34-ae6b-96983b1d3a6bEnglishSymplectic Elements at Oxford1998Wang, ZIreland, PKohler, SChew, JThe local heat transfer coefficient distribution over all four walls of a large-scale model of a gas turbine cooling passage have been measured in great detail. A new method of determining the heat transfer coefficient to the rib surface has been developed and the contribution of the rib, at 5 percent blockage, to the overall roughened heat transfer coefficient was found to be considerable. The vortex-dominated flow field was interpreted from the detailed form of the measured local heat transfer contours. Computational Fluid Dynamics calculations support this model of the flow and yield friction factors that agree with measured values. Advances in the heat transfer measuring technique and data analysis procedure that confirm the accuracy of the transient method are described in full. |
| spellingShingle | Wang, Z Ireland, P Kohler, S Chew, J Heat transfer measurements to a gas turbine cooling passage with inclined ribs |
| title | Heat transfer measurements to a gas turbine cooling passage with inclined ribs |
| title_full | Heat transfer measurements to a gas turbine cooling passage with inclined ribs |
| title_fullStr | Heat transfer measurements to a gas turbine cooling passage with inclined ribs |
| title_full_unstemmed | Heat transfer measurements to a gas turbine cooling passage with inclined ribs |
| title_short | Heat transfer measurements to a gas turbine cooling passage with inclined ribs |
| title_sort | heat transfer measurements to a gas turbine cooling passage with inclined ribs |
| work_keys_str_mv | AT wangz heattransfermeasurementstoagasturbinecoolingpassagewithinclinedribs AT irelandp heattransfermeasurementstoagasturbinecoolingpassagewithinclinedribs AT kohlers heattransfermeasurementstoagasturbinecoolingpassagewithinclinedribs AT chewj heattransfermeasurementstoagasturbinecoolingpassagewithinclinedribs |