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Numerical Simulations of the Combustion Process in a Research Thruster operating with N2O/C2H4 and Comparison to Experimental Data

Werling, Lukas and Bachmann, Ansgar and Perakis, Nikolaos and Methling, Torsten and Janzer, Corina (2022) Numerical Simulations of the Combustion Process in a Research Thruster operating with N2O/C2H4 and Comparison to Experimental Data. 9th European Conference for Aeronautics and Space Sciences (EUCASS), 27.06.2022 - 01.07.2022, Lille, Frankreich. doi: 10.13009/EUCASS2022-6096.

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Abstract

Since decades, the highly toxic hydrazine is used as propellant for in-space propulsion. During the last years, several non-toxic alternatives – so-called green propellants – were developed. One promising replacement for hydrazine are mono- and bipropellants consisting of nitrous oxide and one or more fuels. Here, the German Aerospace Center (DLR) investigates a propellant consisting of nitrous oxide and ethane in premixed monopropellant configuration. In parallel to experimental work performed at DLR’s test site in Lampoldshausen, reaction mechanisms for the combustion of N2O/C2H4 and N2O/C2H6 were developed by DLR’s Institute of Combustion Technology. To gain insight in the combustion processes, the reaction mechanisms were used to simulate the combustion inside a research thruster. For modelling, the commercial CFD solver Ansys Fluent was used. In sum two different basic configurations were simulated: 1) The reaction of premixed N2O/C2H4 by employing the N2O/C2H4 mechanisms and 2) the reaction of premixed N2O/C2H4 by using the N2O/C2H6 mechanisms. As for all cases a large experimental database is available, the results of the simulations were directly compared to the experimental results regarding chamber pressure, thrust and wall heat flux. To match the experimental data, different reaction and turbu- lence models were used and evaluated. Depending on the specific model selection, a very good agreement of the simulation data with the experimental results was achieved.

Item URL in elib:https://elib.dlr.de/190327/
Document Type:Conference or Workshop Item (Speech)
Title:Numerical Simulations of the Combustion Process in a Research Thruster operating with N2O/C2H4 and Comparison to Experimental Data
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Werling, LukasLukas.Werling (at) dlr.dehttps://orcid.org/0000-0003-4353-2931
Bachmann, AnsgarAnsgar.Bachmann (at) dlr.deUNSPECIFIED
Perakis, Nikolaosnikolaos.perakis (at) tum.deUNSPECIFIED
Methling, TorstenTorsten.Methling (at) dlr.dehttps://orcid.org/0000-0003-4988-2334
Janzer, CorinaCorina.Janzer (at) dlr.deUNSPECIFIED
Date:June 2022
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI:10.13009/EUCASS2022-6096
Status:Published
Keywords:Numerical Simulation, CFD, Nitrous Oxide, Ethane, HyNOx, Nitrous Oxide Fuel Blends, Combustion Process, Rocket thruster
Event Title:9th European Conference for Aeronautics and Space Sciences (EUCASS)
Event Location:Lille, Frankreich
Event Type:international Conference
Event Dates:27.06.2022 - 01.07.2022
Organizer:3AF
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 Future Fuels - Advanced Rocket Propellants
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Spacecraft and Orbital Propulsion
Institute of Combustion Technology > Chemical Kinetics and Analytics
Deposited By: Werling, Lukas
Deposited On:18 Nov 2022 06:59
Last Modified:18 Nov 2022 06:59

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