elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Flow Separation in Out-of-Round Nozzles, a Numerical and Experimental Study

Génin, C. and Stark, Ralf and Jack, Sebastian (2013) Flow Separation in Out-of-Round Nozzles, a Numerical and Experimental Study. In: Proceedings 5th EUCASS. 5th European Conference for Aeronautics and Space Sciences EUCASS 2013, 1. - 5. Jul. 2013, München, Germany. ISBN 978-84-941531-0-5

Full text not available from this repository.

Abstract

The start-up and shut-down transient phases in rocket engine nozzles generate high side loads. The internal and external flow fluctuations can excite the eigenmodes of the nozzle structure. The flow separation in out-of-round nozzle intensifies the initial structural deformation, leading in worst case, to the collapse of the nozzle. In the framework of the DLR internal cooperation program ProTAU, the ovalization of nozzles is being investigated from both the numerical and the experimental point of view. Three nozzle geometries have been designed and deformed applying various methods. The flow behavior in the initial axisymmetric and the obtained ovalized contours has been numerically investigated. The most promising contours will be manufactured as permanently ovalized nozzle models and tested under cold flow conditions.

Item URL in elib:https://elib.dlr.de/85310/
Document Type:Conference or Workshop Item (Speech)
Title:Flow Separation in Out-of-Round Nozzles, a Numerical and Experimental Study
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Génin, C.Chloe.Genin (at) dlr.deUNSPECIFIED
Stark, RalfRalf.Stark (at) dlr.dehttps://orcid.org/0000-0003-1923-1901
Jack, SebastianSebastian.Jack (at) dlr.dehttps://orcid.org/0000-0002-1554-6503
Date:2013
Journal or Publication Title:Proceedings 5th EUCASS
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
ISBN:978-84-941531-0-5
Status:Published
Keywords:rocket engine, nozzle, flow fluctuation
Event Title:5th European Conference for Aeronautics and Space Sciences EUCASS 2013
Event Location:München, Germany
Event Type:international Conference
Event Dates:1. - 5. Jul. 2013
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 , Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Institute of Space Propulsion > Rocket Propulsion
Deposited By: Hanke, Michaela
Deposited On:22 Nov 2013 09:02
Last Modified:01 Dec 2018 19:49

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.