Langener, Tobias und Kirchberger, Christoph und Kuhn, Markus und Steelant, Johan (2010) Transpiration Cooling with Supersonic Flows and Foreign Gas Injection. 46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, 2010-07-25 - 2010-07-28, Nashville, USA.
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Kurzfassung
The extremely high heat loads within a Scramjet combustor require the use of high-temperature materials combined with efficient cooling concepts. A promising technique is the application of transpiration cooling to CMC materials. A supersonic hot-gas flow test facility is used to investigate this cooling method. The Carbon/Carbon (C/C) samples tested have porosities of about 11 %. The air-flow is electrically heated up to 1060 K total temperature with a total pressure of 3 bar and is accelerated to a Mach number of 2.1 within the test channel. Air, argon and helium are used as coolants for blowing ratios from 0 to 1 %. The surface temperature of the porous wall is measured via thermocouples and infrared thermography. An approach based upon simplified analytical models is being presented to analyze the experimental data of the cooling efficiency. This is shown for elevated temperature conditions in supersonic flows, including the specific thermal situations, which are typically encountered in such high-temperature tests.
elib-URL des Eintrags: | https://elib.dlr.de/64966/ | ||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||
Zusätzliche Informationen: | AIAA-2010-6794 | ||||||||||||||||||||
Titel: | Transpiration Cooling with Supersonic Flows and Foreign Gas Injection | ||||||||||||||||||||
Autoren: |
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Datum: | 27 Juli 2010 | ||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||
Stichwörter: | ATLLAS, CMC, Ceramic Matrix Composites, Combustion Chamber, Scramjet Combustor, Transpiration Cooling | ||||||||||||||||||||
Veranstaltungstitel: | 46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference | ||||||||||||||||||||
Veranstaltungsort: | Nashville, USA | ||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||
Veranstaltungsdatum: | 2010-07-25 - 2010-07-28 | ||||||||||||||||||||
HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||||||||||||||
HGF - Programm: | Weltraum (alt) | ||||||||||||||||||||
HGF - Programmthema: | W RP - Raumtransport | ||||||||||||||||||||
DLR - Schwerpunkt: | Weltraum | ||||||||||||||||||||
DLR - Forschungsgebiet: | W RP - Raumtransport | ||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | W - EU Projekte Raumtransport (alt) | ||||||||||||||||||||
Standort: | Stuttgart | ||||||||||||||||||||
Institute & Einrichtungen: | Institut für Bauweisen- und Konstruktionsforschung > Raumfahrt- System- Integration | ||||||||||||||||||||
Hinterlegt von: | Kuhn, Markus | ||||||||||||||||||||
Hinterlegt am: | 22 Sep 2010 14:25 | ||||||||||||||||||||
Letzte Änderung: | 22 Sep 2010 14:25 |
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