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Spectral Analysis of Generic Rocket Wake Flows with Cold and Hot Exhaust Jets

Kirchheck, Daniel and Saile, Dominik and Gülhan, Ali (2019) Spectral Analysis of Generic Rocket Wake Flows with Cold and Hot Exhaust Jets. Project Report. Technische Universität München. 15 S.

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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.

Item URL in elib:https://elib.dlr.de/137429/
Document Type:Monograph (Project Report)
Title:Spectral Analysis of Generic Rocket Wake Flows with Cold and Hot Exhaust Jets
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Kirchheck, DanielDaniel.Kirchheck (at) dlr.deUNSPECIFIED
Saile, DominikDominik.Saile (at) dlr.deUNSPECIFIED
Gülhan, AliAli.Guelhan (at) dlr.deUNSPECIFIED
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Number of Pages:15
Keywords:rocket wake flow, hot plume, plume interaction
Institution:Technische Universität München
Department:Lehrstuhl für Aerodynamik
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Anlagen u. Messtechnik (old)
Location: Köln-Porz
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Supersonoc and Hypersonic Technology
Deposited By: Kirchheck, Daniel
Deposited On:26 Nov 2020 07:56
Last Modified:26 Nov 2020 07:56

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