Heat Transfer Measurements of a Transpiration-Cooled Stagnation Point in Transient Hypersonic Flow - Dataset
This paper presents a novel experimental technique where infrared thermography is employed to directly measure the surface heat transfer of a transpiration-cooled porous material in transient hypersonic flow. Experiments were conducted in the Oxford High Density Tunnel on a flat-faced hemispherical...
| Main Authors: | , , , , , , , , |
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| Format: | Dataset |
| Language: | English |
| Published: |
University of Oxford
2022
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| _version_ | 1797108281610600448 |
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| author | Naved, I Hermann, T McGilvray, M Ewenz Rocher, M Hambidge, C Doherty, L Le Page, L Grossman, M Vandeperre, L |
| author_facet | Naved, I Hermann, T McGilvray, M Ewenz Rocher, M Hambidge, C Doherty, L Le Page, L Grossman, M Vandeperre, L |
| author_sort | Naved, I |
| collection | OXFORD |
| description | This paper presents a novel experimental technique where infrared thermography is employed to directly measure
the surface heat transfer of a transpiration-cooled porous material in transient hypersonic flow. Experiments were
conducted in the Oxford High Density Tunnel on a flat-faced hemispherical probe at a single Mach 7 freestream
condition (Reu � 3.84 ⋅ 106 m−1) with nitrogen, air, argon, krypton, and helium injection gases and mass flow rates
ranging from 0.01 to 0.235 kg ⋅ s−1 ⋅ m−2. Surface heat transfer measurements were extracted by imaging directly on the porous material using a FLIR A6751 high-speed long-wave infrared camera. Porous alumina was chosen due to its favorable thermal properties for infrared analysis and its very small pore sizes (≈2 μm) enabling a uniform outflow. It
was found that the surface Stanton number reduction matched to within 10% of both computational fluid dynamics
results and correlations. |
| first_indexed | 2024-03-07T07:27:00Z |
| format | Dataset |
| id | oxford-uuid:2dbb6e4c-3393-49dc-beab-5d34bea2b088 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:27:00Z |
| publishDate | 2022 |
| publisher | University of Oxford |
| record_format | dspace |
| spelling | oxford-uuid:2dbb6e4c-3393-49dc-beab-5d34bea2b0882022-11-30T15:12:29ZHeat Transfer Measurements of a Transpiration-Cooled Stagnation Point in Transient Hypersonic Flow - DatasetDatasethttp://purl.org/coar/resource_type/c_ddb1uuid:2dbb6e4c-3393-49dc-beab-5d34bea2b088EnglishHyrax DepositUniversity of Oxford2022Naved, IHermann, TMcGilvray, MEwenz Rocher, MHambidge, CDoherty, LLe Page, LGrossman, MVandeperre, LThis paper presents a novel experimental technique where infrared thermography is employed to directly measure the surface heat transfer of a transpiration-cooled porous material in transient hypersonic flow. Experiments were conducted in the Oxford High Density Tunnel on a flat-faced hemispherical probe at a single Mach 7 freestream condition (Reu � 3.84 ⋅ 106 m−1) with nitrogen, air, argon, krypton, and helium injection gases and mass flow rates ranging from 0.01 to 0.235 kg ⋅ s−1 ⋅ m−2. Surface heat transfer measurements were extracted by imaging directly on the porous material using a FLIR A6751 high-speed long-wave infrared camera. Porous alumina was chosen due to its favorable thermal properties for infrared analysis and its very small pore sizes (≈2 μm) enabling a uniform outflow. It was found that the surface Stanton number reduction matched to within 10% of both computational fluid dynamics results and correlations. |
| spellingShingle | Naved, I Hermann, T McGilvray, M Ewenz Rocher, M Hambidge, C Doherty, L Le Page, L Grossman, M Vandeperre, L Heat Transfer Measurements of a Transpiration-Cooled Stagnation Point in Transient Hypersonic Flow - Dataset |
| title | Heat Transfer Measurements of a Transpiration-Cooled Stagnation Point in Transient Hypersonic Flow - Dataset |
| title_full | Heat Transfer Measurements of a Transpiration-Cooled Stagnation Point in Transient Hypersonic Flow - Dataset |
| title_fullStr | Heat Transfer Measurements of a Transpiration-Cooled Stagnation Point in Transient Hypersonic Flow - Dataset |
| title_full_unstemmed | Heat Transfer Measurements of a Transpiration-Cooled Stagnation Point in Transient Hypersonic Flow - Dataset |
| title_short | Heat Transfer Measurements of a Transpiration-Cooled Stagnation Point in Transient Hypersonic Flow - Dataset |
| title_sort | heat transfer measurements of a transpiration cooled stagnation point in transient hypersonic flow dataset |
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