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Experimental Simulation of Rocket Base Flow using Air as Cold Exhaust Gas in Supersonic External Flow

Kirchheck, Daniel and Gülhan, Ali (2015) Experimental Simulation of Rocket Base Flow using Air as Cold Exhaust Gas in Supersonic External Flow. Project Report.

Full text not available from this repository.

Abstract

After several investigations were performed to analyze the interaction between hypersonic external flow and the nozzle plume of rocket base flows in the past, now the focus has been set on a supersonic configuration at a freestream velocity of Mach 3. A wind tunnel model representing the generic shape of a launcher has been fabricated to fit the needs of the TMK wind tunnel facility at DLR Cologne. The model with a modular base region has been undertaken different parameter studies with cold air as exhaust gas. High frequency, as well as static pressure measurements in the base region are conducted to characterize the dynamic and static response of the recirculation flow field on different testing conditions. High-speed Schlieren and oil film visualization techniques are used to analyse the flow topology inside the fluid volume as well as directly at the model surface. Pressure fluctuations on the base show characteristic frequencies at Strouhal numbers of 0.2, as well as 1.0 and >1.4.

Item URL in elib:https://elib.dlr.de/99113/
Document Type:Monograph (Project Report)
Title:Experimental Simulation of Rocket Base Flow using Air as Cold Exhaust Gas in Supersonic External Flow
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kirchheck, Danieldaniel.kirchheck (at) dlr.deUNSPECIFIED
Gülhan, Aliali.guelhan (at) dlr.deUNSPECIFIED
Date:2015
Journal or Publication Title:SFB/TRR40 : Technological foundations for the design of thermally and mechanically highly loaded components of future space transportation systems : Annual Report 2015
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Accepted
Keywords:rocket base flow, plume interaction, rocket plume simulation
Institution:Technische Universität München
Department:Lehrstuhl für Aerodynamik
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Systemanalyse Raumtransport
Location: Köln-Porz
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Über- und Hyperschalltechnologien
Deposited By: Kirchheck, Daniel
Deposited On:05 Nov 2015 06:57
Last Modified:18 Sep 2017 14:23

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