Pressure-sensitive paint diagnostic to measure species concentration on transpiration-cooled walls
This paper presents the performance of pressure-sensitive paint (PSP) for the direct measurement of species concentration on a porous surface with mass injection. It is used to measure the ability of an injected gas to reduce the mass transfer of freestream species to the surface. A porous alumina s...
| Main Authors: | , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Springer
2021
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| _version_ | 1797087259761049600 |
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| author | Ewenz Rocher, M Hermann, T McGilvray, M Ifti, HS Vieira, J Hambidge, C Quinn, MK Grossman, M Vandeperre, L |
| author_facet | Ewenz Rocher, M Hermann, T McGilvray, M Ifti, HS Vieira, J Hambidge, C Quinn, MK Grossman, M Vandeperre, L |
| author_sort | Ewenz Rocher, M |
| collection | OXFORD |
| description | This paper presents the performance of pressure-sensitive paint (PSP) for the direct measurement of species concentration on a porous surface with mass injection. It is used to measure the ability of an injected gas to reduce the mass transfer of freestream species to the surface. A porous alumina sample was sprayed with a PSP luminophore solution. The sample was installed into a flat plate model and exposed to hypersonic cross-flows in the Oxford High-Density Tunnel. Tests were conducted with no coolant injection, air injection, and nitrogen injection at increasing blowing ratios. Oxygen partial pressure maps on the transpiration-cooled surface were obtained for several conditions at unit Reynolds numbers between 2.58−5.0×107/m and blowing ratios between 0.016−0.078%. The oxygen pressure decreases as the unit Reynolds number decreases and the blowing ratio increases. |
| first_indexed | 2024-03-07T02:33:17Z |
| format | Journal article |
| id | oxford-uuid:a7f35260-9e25-47f3-958c-7d6fab76ac3a |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:33:17Z |
| publishDate | 2021 |
| publisher | Springer |
| record_format | dspace |
| spelling | oxford-uuid:a7f35260-9e25-47f3-958c-7d6fab76ac3a2022-03-27T02:58:04ZPressure-sensitive paint diagnostic to measure species concentration on transpiration-cooled wallsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a7f35260-9e25-47f3-958c-7d6fab76ac3aEnglishSymplectic ElementsSpringer2021Ewenz Rocher, MHermann, TMcGilvray, MIfti, HSVieira, JHambidge, CQuinn, MKGrossman, MVandeperre, LThis paper presents the performance of pressure-sensitive paint (PSP) for the direct measurement of species concentration on a porous surface with mass injection. It is used to measure the ability of an injected gas to reduce the mass transfer of freestream species to the surface. A porous alumina sample was sprayed with a PSP luminophore solution. The sample was installed into a flat plate model and exposed to hypersonic cross-flows in the Oxford High-Density Tunnel. Tests were conducted with no coolant injection, air injection, and nitrogen injection at increasing blowing ratios. Oxygen partial pressure maps on the transpiration-cooled surface were obtained for several conditions at unit Reynolds numbers between 2.58−5.0×107/m and blowing ratios between 0.016−0.078%. The oxygen pressure decreases as the unit Reynolds number decreases and the blowing ratio increases. |
| spellingShingle | Ewenz Rocher, M Hermann, T McGilvray, M Ifti, HS Vieira, J Hambidge, C Quinn, MK Grossman, M Vandeperre, L Pressure-sensitive paint diagnostic to measure species concentration on transpiration-cooled walls |
| title | Pressure-sensitive paint diagnostic to measure species concentration on transpiration-cooled walls |
| title_full | Pressure-sensitive paint diagnostic to measure species concentration on transpiration-cooled walls |
| title_fullStr | Pressure-sensitive paint diagnostic to measure species concentration on transpiration-cooled walls |
| title_full_unstemmed | Pressure-sensitive paint diagnostic to measure species concentration on transpiration-cooled walls |
| title_short | Pressure-sensitive paint diagnostic to measure species concentration on transpiration-cooled walls |
| title_sort | pressure sensitive paint diagnostic to measure species concentration on transpiration cooled walls |
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