Calculation of the Thermoacoustic Stability of a Main Stage Thrust Chamber Demonstrator

Alexander Chemnitz, Thomas Sattelmayer

Publikation: Beitrag in Buch/Bericht/KonferenzbandKapitelBegutachtung

Abstract

The stability behavior of a virtual thrust chamber demonstrator with low injection pressure loss is studied numerically. The approach relies on an eigenvalue analysis of the Linearized Euler Equations. An updated form of the stability prediction procedure is outlined, addressing mean flow and flame response calculations. The acoustics of the isolated oxidizer dome are discussed as well as the complete system incorporating dome and combustion chamber. The coupling between both components is realized via a scattering matrix representing the injectors. A flame transfer function is applied to determine the damping rates. Thereby it is found that the procedure for the extraction of the flame transfer function from the CFD solution has a significant impact on the stability predictions.

OriginalspracheEnglisch
TitelNotes on Numerical Fluid Mechanics and Multidisciplinary Design
Herausgeber (Verlag)Springer Science and Business Media Deutschland GmbH
Seiten235-247
Seitenumfang13
DOIs
PublikationsstatusVeröffentlicht - 2021

Publikationsreihe

NameNotes on Numerical Fluid Mechanics and Multidisciplinary Design
Band146
ISSN (Print)1612-2909
ISSN (elektronisch)1860-0824

Fingerprint

Untersuchen Sie die Forschungsthemen von „Calculation of the Thermoacoustic Stability of a Main Stage Thrust Chamber Demonstrator“. Zusammen bilden sie einen einzigartigen Fingerprint.

Dieses zitieren