Low-order modelling of the non-local acoustic reacting combustion chamber-dome interface in rocket engines

M. Schulze, T. Sattelmayer

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

7 Zitate (Scopus)

Abstract

Alow-order model of the complex non-local reacting acoustic interface between the com- bustion chamber and the oxygen dome volume of typical rocket engine configurations is presented. Herein, computational effort is reduced by not resolving the complex face plate geometry comprising a potentially big number of injectors but by providing an adequate describing function of the interface in its entirety. The acoustic properties of the interface are described by so-called scattering matrices. The determination of the scattering matrix is performed in a separated procedure, which can be conducted analytically, numerically or by using experimental methods. Detailed evaluations of these lead to matrices that capture even small scale effects. For the usage of the scattering matrices in a time-domain solver digital filters are applied. This paper presents first results for the case of an orifice located in a straight pipe, which is considered as a simplified face plate configuration for longitudinal waves. The objective is to verify that the imposed scattering matrix can be reconstructed by using the two-source location method.

OriginalspracheEnglisch
TitelAIAA AVIATION 2014 -19th AIAA International Space Planes and Hypersonic Systems and Technologies Conference
Herausgeber (Verlag)American Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624102844
DOIs
PublikationsstatusVeröffentlicht - 2014
VeranstaltungAIAA AVIATION 2014 -19th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2014 - Atlanta, GA, USA/Vereinigte Staaten
Dauer: 16 Juni 201420 Juni 2014

Publikationsreihe

NameAIAA AVIATION 2014 -19th AIAA International Space Planes and Hypersonic Systems and Technologies Conference

Konferenz

KonferenzAIAA AVIATION 2014 -19th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2014
Land/GebietUSA/Vereinigte Staaten
OrtAtlanta, GA
Zeitraum16/06/1420/06/14

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