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Spectral Analysis of Rocket Wake Flow-Jet Interaction by Means of High-speed Schlieren Imaging

Kirchheck, Daniel and Saile, Dominik and Gülhan, Ali (2019) Spectral Analysis of Rocket Wake Flow-Jet Interaction by Means of High-speed Schlieren Imaging. 8th European Conference for Aeronautics and Space Sciences (EUCASS), 1.-4. Juli 2019, Madrid, Spanien.

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Official URL: http://www.eucass2019.eu

Abstract

The wake flow field of a generic rocket launcher geometry at Mach 0.8, with a supersonic exhaust jet at stagnation conditions from 288 to 919 K was analyzed regarding its spectral content by means of highspeed Schlieren imaging and pressure measurements. The spectral analysis captured typical wake flow frequencies and their characteristic mode shape for the cross-flapping and swinging motion 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/128673/
Document Type:Conference or Workshop Item (Speech)
Title:Spectral Analysis of Rocket Wake Flow-Jet Interaction by Means of High-speed Schlieren Imaging
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kirchheck, DanielDaniel.Kirchheck (at) dlr.deUNSPECIFIED
Saile, DominikDominik.Saile (at) dlr.deUNSPECIFIED
Gülhan, AliAli.Guelhan (at) dlr.deUNSPECIFIED
Date:2019
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-15
Status:Published
Keywords:rocket wake flow, plume interaction, jet interaction, spectral analysis
Event Title:8th European Conference for Aeronautics and Space Sciences (EUCASS)
Event Location:Madrid, Spanien
Event Type:international Conference
Event Dates:1.-4. Juli 2019
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Köln-Porz
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Supersonoc and Hypersonic Technology
Deposited By: Kirchheck, Daniel
Deposited On:09 Aug 2019 07:36
Last Modified:09 Aug 2019 07:36

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