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Stark, Ralf und Wagner, Bernd (2006) Experimental Flow Investigation of a Truncated Ideal Contour Nozzle. 42th Joint Propulsion Conference & Exhibit, 2006-07-09 - 2006-07-12, Sacramento, California (USA).
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Kurzfassung
Various tests showed a significant side load peak for low nozzle pressure ratios during engine start-up and shut down phase. DLR Lampoldshausen carried out tests to examine the flow field in a truncated ideal contour nozzle for low NPR. For NPR<10 a convex and for NPR>20 a slight concave shaped Mach disk was found. Its curvature is limited to the centre and its height trend correlates with measured side loads. A concave shaped Mach disk being responsible for re-attached flows at low NPR could be excluded. The experiments were accompanied by numerical simulations of the flow field on various pressure ratios with regards on the shock pattern. The predicted Mach disk shape compares well with the experiments.
| elib-URL des Eintrags: | https://elib.dlr.de/49257/ | ||||||||||||
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| Dokumentart: | Konferenzbeitrag (Paper) | ||||||||||||
| Titel: | Experimental Flow Investigation of a Truncated Ideal Contour Nozzle | ||||||||||||
| Autoren: |
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| Datum: | 2006 | ||||||||||||
| Referierte Publikation: | Nein | ||||||||||||
| Open Access: | Ja | ||||||||||||
| Gold Open Access: | Nein | ||||||||||||
| In SCOPUS: | Nein | ||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||
| Status: | veröffentlicht | ||||||||||||
| Stichwörter: | Low Nozzle Pressure Ratio, Flow Separation, Re-attached Flow, Mach Disc Shape | ||||||||||||
| Veranstaltungstitel: | 42th Joint Propulsion Conference & Exhibit | ||||||||||||
| Veranstaltungsort: | Sacramento, California (USA) | ||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||
| Veranstaltungsbeginn: | 9 Juli 2006 | ||||||||||||
| Veranstaltungsende: | 12 Juli 2006 | ||||||||||||
| 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 - Antriebsystemtechnik - Schubkammertechnologie und Hochdruckverbrennung (alt) | ||||||||||||
| Standort: | Lampoldshausen | ||||||||||||
| Institute & Einrichtungen: | Institut für Raumfahrtantriebe > Technologie | ||||||||||||
| Hinterlegt von: | Stark, Dr.-Ing. Ralf | ||||||||||||
| Hinterlegt am: | 03 Jul 2007 | ||||||||||||
| Letzte Änderung: | 24 Apr 2024 19:11 |
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