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Modeling combustion chamber acoustics using the DLR TAU code

Horchler, Tim and Armbruster, Wolfgang and Hardi, Justin and Karl, Sebastian and Hannemann, Klaus and Gernoth, Andreas and De Rosa, Marco (2018) Modeling combustion chamber acoustics using the DLR TAU code. In: Space Propulsion Conference 2018. Space Propulsion Conference 2018, 14.-18. Mai 2018, Sevilla, Spanien.

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Official URL: http://spacepropulsion2018.com/proceedings2018/

Abstract

This paper investigates the numerical properties of the DLR TAU code as a tool for combustion instability research. Starting from simple ideal gas test cases of closed cavities, frequencies and damping properties of acoustic eigenmodes are determined and compared to experimental and analytical results. Different methods for calculating damping properties and eigenmode extraction are shown and discussed. A detailed study of the TAU boundary conditions shows their acoustic properties and equivalent acoustic type. Also, results for a simplified partially-reflecting boundary condition are shown. Realistic three-dimensional transversal modes and their damping properties are investigated using a cold-flow combustion chamberlike geometry. The results are compared to experimental and numerical results from the literature. The study concludes with numerical results of a combustion chamber injector coupling in a breadboard experiment designed as a future benchmark experiment to deliver suitable data for CFD Validation.

Item URL in elib:https://elib.dlr.de/120225/
Document Type:Conference or Workshop Item (Speech)
Title:Modeling combustion chamber acoustics using the DLR TAU code
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Horchler, Timtim.horchler (at) dlr.deUNSPECIFIED
Armbruster, WolfgangWolfgang.Armbruster (at) dlr.deUNSPECIFIED
Hardi, JustinJustin.Hardi (at) dlr.dehttps://orcid.org/0000-0003-3258-5261
Karl, SebastianSebastian.Karl (at) dlr.deUNSPECIFIED
Hannemann, Klausklaus.hannemann (at) dlr.deUNSPECIFIED
Gernoth, AndreasESA, ESTEC, Noordwijk, NiederlandeUNSPECIFIED
De Rosa, MarcoESA, ESTEC, Noordwijk, NiederlandeUNSPECIFIED
Date:May 2018
Journal or Publication Title:Space Propulsion Conference 2018
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Numerische Simulation, Akustik, Raketenantriebe, Verbrennungsinstabilitäten, numerische Dämpfung
Event Title:Space Propulsion Conference 2018
Event Location:Sevilla, Spanien
Event Type:international Conference
Event Dates:14.-18. Mai 2018
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 - Wiederverwendbare Raumfahrtsysteme und Antriebstechnologie
Location: Göttingen , Lampoldshausen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Spacecraft, GO
Institute of Space Propulsion > Rocket Propulsion
Deposited By: Horchler, Tim
Deposited On:13 Jun 2018 08:09
Last Modified:13 Jun 2018 08:09

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