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

Investigation of Combustion Chamber Acoustics and its Interaction with LOX/H2 Spray Flames

Oschwald, M. and Knapp, B. (2009) Investigation of Combustion Chamber Acoustics and its Interaction with LOX/H2 Spray Flames. In: Progress in Propulsion Physics, Vol. 1. Torus Press. pp. 205-223. ISBN 978-2-7598-0411-5.

Full text not available from this repository.

Abstract

Acoustics of combustion chambers is investigated experimentally in cold flow and hot fire tests. The performance of absorber elements is analyzed in respect to their effect on combustion chamber eigenfrequencies as well as to their damping characteristics. It is shown that predictions of numerical modal analysis of chamber acoustics are in very good agreement with measurements. In hot fire tests, a burning LOX/H2 spray is acoustically excited with a siren wheel and combustion response is recorded with dynamic pressure sensors and by high-speed visualization of the spray and the flame. Although no combustion instability could be observed, analyzing the temporal and spatial distribution of flame response allowed addressing the question, whether the coupling of acoustics to combustion is via pressure or velocity sensitive processes.

Document Type:Book Section
Title:Investigation of Combustion Chamber Acoustics and its Interaction with LOX/H2 Spray Flames
Authors:
AuthorsInstitution or Email of Authors
Oschwald, M.Michael.Oschwald@dlr.de
Knapp, B.Bernhard.Knapp@dlr.de
Date:2009
Refereed publication:Yes
In ISI Web of Science:No
Volume:Vol. 1
Page Range:pp. 205-223
Editors:
EditorsEmail
DeLuca, L.UNSPECIFIED
Bonnal, C.UNSPECIFIED
Haidn, O.Oskar.Haidn@dlr.de
Frolov, S.UNSPECIFIED
Publisher:Torus Press
Series Name:Progress in Propulsion Physics
ISBN:978-2-7598-0411-5
Status:Published
Keywords:combustion chamber acoustics, LOX, H2
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignement
DLR - Research area:Space
DLR - Program:W - no assignement
DLR - Research theme (Project):W -- no assignement (old)
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Technologie
Deposited By: Michaela Hanke
Deposited On:07 Jul 2009 08:34
Last Modified:02 Nov 2009 16:24

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.