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Acoustic Charakterisation of a Rectangular Rocket Combustor with Liquid Oxygen and Hydrogen Propellants

Hardi, Justin and Oschwald, Michael and Dally, B. (2012) Acoustic Charakterisation of a Rectangular Rocket Combustor with Liquid Oxygen and Hydrogen Propellants. Journal of Aerospace Engineering. American Society of Civil Engineers. doi: 10.1177/0954410012437511.

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High frequency combustion instabilities have plagued the development of liquid propellant rocket engines since their invention. Continuing research efforts aim to understand the mechanisms by which the oscillating combustion chamber pressure of self-sustaining combustion instabilities is driven. To this end, a rectangular combustor with acoustic forcing, designated ‘BKH’, was developed to study flame-acoustic interaction under conditions which are representative of real rocket engines. This article describes the acoustic characterisation of the BKH combustor using high frequency dynamic pressure measurements from the first hot-fire tests using liquid oxygen and ambient temperature or cryogenic hydrogen injectants. Analysis of the resulting high frequency pressure measurements shows excellent agreement with the predicted acoustic properties of the system which were calculated using finite element methods.

Item URL in elib:https://elib.dlr.de/80654/
Document Type:Article
Title:Acoustic Charakterisation of a Rectangular Rocket Combustor with Liquid Oxygen and Hydrogen Propellants
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Hardi, JustinUNSPECIFIEDhttps://orcid.org/0000-0003-3258-5261UNSPECIFIED
Oschwald, MichaelUNSPECIFIEDhttps://orcid.org/0000-0002-9579-9825UNSPECIFIED
Dally, B.University of Adelaide, AustraliaUNSPECIFIEDUNSPECIFIED
Date:2 March 2012
Journal or Publication Title:Journal of Aerospace Engineering
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Publisher:American Society of Civil Engineers
Keywords:Combustion instabilities, rocket propulsion, liquid propellant rocket engine, acoustic resonance
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Antriebsystemtechnik - Schubkammertechnologie (old)
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Rocket Propulsion
Deposited By: Hanke, Michaela
Deposited On:15 Jan 2013 08:27
Last Modified:07 Nov 2023 15:15

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