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Flame anchoring for shear coaxial injectors in a LOX/LNG rocket engine demonstrator

Börner, Michael and Martin, Jan and Hardi, Justin and Suslov, Dmitry and Deeken, Jan C. and Oschwald, Michael (2021) Flame anchoring for shear coaxial injectors in a LOX/LNG rocket engine demonstrator. ODAS MOTAR 2021, 14.06.2021, Virtual.

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Abstract

The LUMEN project (liquid upper stage demonstrator engine) at the DLR Institute of Space Propulsion has the goal of producing a bread-board demonstrator engine powered by LOX/LNG. In this paper the flame anchoring at the shear-coaxial injectors is investigated in function of operational load points by optical probes. The combustion chamber pressure and mixture ratio were varied to identify the impact of the injection conditions onto the flame anchoring behaviour. In the two test runs presented here, the thresholds of the momentum flux ratio J were 7,5 and 10 for stable anchoring of the combustion zone at the injector face plate.

Item URL in elib:https://elib.dlr.de/145950/
Document Type:Conference or Workshop Item (Speech)
Title:Flame anchoring for shear coaxial injectors in a LOX/LNG rocket engine demonstrator
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Börner, Michaelmichael.boerner (at) dlr.dehttps://orcid.org/0000-0002-3441-2869
Martin, JanJan.Martin (at) dlr.dehttps://orcid.org/0000-0002-5050-2506
Hardi, JustinJustin.Hardi (at) dlr.dehttps://orcid.org/0000-0003-3258-5261
Suslov, DmitryDmitry.Suslov (at) dlr.dehttps://orcid.org/0000-0002-5160-9292
Deeken, Jan C.Jan.Deeken (at) dlr.dehttps://orcid.org/0000-0002-5714-8845
Oschwald, MichaelMichael.Oschwald (at) dlr.dehttps://orcid.org/0000-0002-9579-9825
Date:2021
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:combustion dynamics, methane, flame anchoring, coaxial injector, LUMEN demonstrator
Event Title:ODAS MOTAR 2021
Event Location:Virtual
Event Type:national Conference
Event Dates:14.06.2021
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 - Project LUMEN (Liquid Upper Stage Demonstrator Engine)
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Rocket Engine Systems
Institute of Space Propulsion > Rocket Propulsion Technology
Institute of Space Propulsion > Leitungsbereich RA
Deposited By: Hanke, Michaela
Deposited On:22 Nov 2021 14:01
Last Modified:22 Nov 2021 14:01

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