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Parametrical Study on Side Load Generation in Subscale Rocket Nozzles

Stark, Ralf and Génin, Chloé (2019) Parametrical Study on Side Load Generation in Subscale Rocket Nozzles. In: Progress in Propulsion Physics Torus Press. pp. 543-554. ISBN 978-5-94588-228-7. ISSN 2493-3503

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Official URL: https://www.eucass-proceedings.eu/articles/eucass/pdf/2019/01/eucass2019_543.pdf

Abstract

The flow separation within convergent–divergent rocket engine nozzles induces undesired side loads. As the flow separation cannot be avoided during startup and shutdown processes of the engine, the understanding of the resulting side loads is of crucial interest. To develop and validate side load models, an experimental parametrical study was conducted. The parameters of interest were the length of the separated backflow region, the wall contour angle, and the total pressure gradient during startup and shutdown processes. For this reason, three subscale models were designed and tested in five configurations. As the main side load driver, a comparably slow moving separation front, passing a long and narrow backflow region, could be identified.

Item URL in elib:https://elib.dlr.de/132755/
Document Type:Book Section
Title:Parametrical Study on Side Load Generation in Subscale Rocket Nozzles
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Stark, RalfRalf.Stark (at) dlr.dehttps://orcid.org/0000-0003-1923-1901
Génin, ChloéChloe.Genin (at) dlr.dehttps://orcid.org/0000-0002-5752-0643
Date:8 February 2019
Journal or Publication Title:Progress in Propulsion Physics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:11
DOI :10.1051/eucass/201911543
Page Range:pp. 543-554
Publisher:Torus Press
ISSN:2493-3503
ISBN:978-5-94588-228-7
Status:Published
Keywords:rocket nozzle
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 - Antriebsystemtechnik - Schubkammertechnologie
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Rocket Propulsion
Deposited By: Hanke, Michaela
Deposited On:13 Dec 2019 13:22
Last Modified:13 Dec 2019 13:22

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