Peichl, Jonas Stefan und Schwab, Andreas und Selzer, Markus und Böhrk, Hannah und von Wolfersdorf, Jens (2022) Experimental Investigation of Transpiration Cooling in a Subscale Combustion Chamber with Non-Reactive Flow. 2nd International Conference on High-Speed Vehicle Science & Technology, 2022-09-12 - 2022-09-15, Brügge, Belgien.
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Kurzfassung
This paper presents the first results of a study of transpiration cooling in a segmented ceramic matrix composite specimen resembling a subscale rocket engine combustion chamber. The tests were conducted with a hot air mainstream flow with a temperature of Thg = 800 K, and cold air as coolant. For the first experiments, a variation of the blowing ratio of F = 0-0.75% was investigated, with constant blowing over all segments. The increase of cooling efficiency with rising blowing ratio is demonstrated. For the nozzle contoured segment, a significant increase of the wall temperature could be determined for low blowing ratios, which can be attributed to cross-flows caused by the higher pressure gradient in the expansion section.
elib-URL des Eintrags: | https://elib.dlr.de/188358/ | ||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||
Titel: | Experimental Investigation of Transpiration Cooling in a Subscale Combustion Chamber with Non-Reactive Flow | ||||||||||||
Autoren: |
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Datum: | September 2022 | ||||||||||||
Open Access: | Nein | ||||||||||||
In SCOPUS: | Nein | ||||||||||||
In ISI Web of Science: | Nein | ||||||||||||
Stichwörter: | Transpiration cooling, rocket engine combustion chambers, ceramic matrix composites | ||||||||||||
Veranstaltungstitel: | 2nd International Conference on High-Speed Vehicle Science & Technology | ||||||||||||
Veranstaltungsort: | Brügge, Belgien | ||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||
Veranstaltungsbeginn: | 12 September 2022 | ||||||||||||
Veranstaltungsende: | 15 September 2022 | ||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||
DLR - Forschungsgebiet: | R RP - Raumtransport | ||||||||||||
Standort: | Stuttgart | ||||||||||||
Institute & Einrichtungen: | Institut für Bauweisen und Strukturtechnologie > Raumfahrt - System - Integration |
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