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Toward Numerical Investigation of Ignition and Combustion Transition in a Subscale LOX/Methane Rocket Combustor

Bonanni, Mathew and Mohaddes, Danyal and Nguyen, Ly and Perakis, Nikolaos and Hardi, Justin and Börner, Michael and Ihme, Matthias (2021) Toward Numerical Investigation of Ignition and Combustion Transition in a Subscale LOX/Methane Rocket Combustor. In: AIAA Scitech 2021 Forum. AIAA SciTech Forum, 19. - 21. Jan. 2021, Virtual event. doi: 10.2514/6.2021-1141. ISBN 978-162410609-5.

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LOX/methane is a promising alternative to hypergolic fuels in spacecraft thrusters, featuring advantages such as nontoxicity, high specific impulse, and low cost. Its reliable ignition, however, is a challenging problem due to its dependence on the local mixture composition, its requirement of overcoming ionization energies, and its process of transition to a sustained combustion mode. Experimental research has focused on laser pulses as an ignition mechanism for these thrusters, and has demonstrated significant viability. This work presents a numerical study of a reacting LOX/methane thruster using large eddy simulation combined with a Lagrangian description of the LOX spray. This model is successfully employed to simulate reacting flow in the Reaction Control System (RCS) breadboard combustor at DLR, achieving spray behavior that is qualitatively similar to the pre-ignition experimental data. This work represents a forward step towards simulating the startup process of this thruster via laser ignition.

Item URL in elib:https://elib.dlr.de/145585/
Document Type:Conference or Workshop Item (Speech)
Title:Toward Numerical Investigation of Ignition and Combustion Transition in a Subscale LOX/Methane Rocket Combustor
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Bonanni, MathewStanford University, Stanford, CA, 94305 USAUNSPECIFIED
Mohaddes, DanyalStanford University, Stanford, CA, 94305 USAUNSPECIFIED
Nguyen, LyStanford University, Stanford, CA, 94305 USAUNSPECIFIED
Perakis, NikolaosTechnical University Munich, 85749 GermanyUNSPECIFIED
Hardi, JustinJustin.Hardi (at) dlr.dehttps://orcid.org/0000-0003-3258-5261
Börner, MichaelMichael.Boerner (at) dlr.dehttps://orcid.org/0000-0002-3441-2869
Ihme, MatthiasStanford University, Stanford, CA, 94305 USAUNSPECIFIED
Journal or Publication Title:AIAA Scitech 2021 Forum
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.2514/6.2021-1141
Keywords:LOX, methane, hypergolic fuels, spacecraft thruster
Event Title:AIAA SciTech Forum
Event Location:Virtual event
Event Type:international Conference
Event Dates:19. - 21. Jan. 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 - Reusable Space Systems and Propulsion Technology
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Rocket Propulsion Technology
Deposited By: Hanke, Michaela
Deposited On:22 Nov 2021 08:31
Last Modified:22 Nov 2021 08:31

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