Kirchheck, Daniel und Saile, Dominik und Gülhan, Ali (2019) Spectral Analysis of Generic Rocket Wake Flows with Cold and Hot Exhaust Jets. Projektbericht. Technische Universität München. 15 S.
PDF
4MB |
Offizielle URL: http://www.sfbtr40.de/index.php?id=annualreports
Kurzfassung
The dynamic motions of the wake flow fields of a generic rocket launcher geometry at Mach 0.8, interacting with a supersonic exhaust jet at different stagnation conditions, ranging from 288 to 919 K are addressed in this work. They were analyzed regarding its spectral content by means of high-speed Schlieren imaging and unsteady chamber pressure measurements. The spectral analysis captured the typical wake flow frequencies and their characteristic mode shapes of the cross-flapping and swinging motions of the ambient shear layer at SrD = 0.19 and 0.35. At certain conditions, a strong amplification of the swinging motion was observed, which is probably governed by a coupling of the dynamic wake flow modes and the acoustic chamber properties.
elib-URL des Eintrags: | https://elib.dlr.de/137429/ | ||||||||
---|---|---|---|---|---|---|---|---|---|
Dokumentart: | Berichtsreihe (Projektbericht) | ||||||||
Titel: | Spectral Analysis of Generic Rocket Wake Flows with Cold and Hot Exhaust Jets | ||||||||
Autoren: |
| ||||||||
Datum: | 2019 | ||||||||
Open Access: | Ja | ||||||||
Seitenanzahl: | 15 | ||||||||
Stichwörter: | rocket wake flow, hot plume, plume interaction | ||||||||
Institution: | Technische Universität München | ||||||||
Abteilung: | Lehrstuhl für Aerodynamik | ||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||
DLR - Forschungsgebiet: | R RP - Raumtransport | ||||||||
Standort: | Köln-Porz | ||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Über- und Hyperschalltechnologien, KP |
Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags