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Preparatory CFD Studies for Subsonic Analyses of a Reusable First Stage Launcher during Landing within the RETPRO Project

Bykerk, Tamas and Karl, Sebastian (2023) Preparatory CFD Studies for Subsonic Analyses of a Reusable First Stage Launcher during Landing within the RETPRO Project. In: 10th EUCASS – 9th CEAS Conference 2023, pp. 1-10. 10th EUCASS – 9th CEAS Conference 2023, 2023-07-09 - 2023-07-13, Lausanne, Switzerland. doi: 10.13009/EUCASS2023-017.

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Official URL: https://www.eucass.eu/doi/EUCASS2023-017.pdf


The RETPRO project (Validation of Wind Tunnel Test and CFD Techniques for Retropropulsion), as part of ESA's Future Launchers Preparatory Programme, aims at preparing the tools necessary for a reliable design and simulation of future launchers or spacecraft. A particular focus is assigned to vertical take-off and landing configurations using retro propulsion as part of their control concept for entry, descent, and landing manoeuvres. Wind tunnel tests and computational fluid dynamics are used to generate a comprehensive aerodynamic database, which is required for flight dynamics simulations, enabling mission and performance analyses of possible future launcher designs. Two successful campaigns analyzing the hypersonic re-entry burn phase of flight as well as the supersonic glide phase have been completed in the H2K and TMK facilities at DLR Cologne. The final phase of the RETPRO project looks to perform aerothermal tests by combusting H2/O2 during a retro burn in the subsonic VMK test section, simulating the landing environment. As was completed for the previous test campaigns, CFD reconstructions of selected tests are performed to evaluate the ability of RANS simulations to match the plume structure and flowfield, as well as surface pressure and heat flux measurements taken during the campaign. This paper will be primarily concerned with the CFD sensitivity studies conducted to determine the dependence of plume structure and surface measurements on factors such as grid density, combustion chamber conditions, wall temperature and turbulence model. Where possible, results from wind tunnel tests will be used to evaluate the combination of settings which best represent the experiments.

Item URL in elib:https://elib.dlr.de/194477/
Document Type:Conference or Workshop Item (Speech)
Title:Preparatory CFD Studies for Subsonic Analyses of a Reusable First Stage Launcher during Landing within the RETPRO Project
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Bykerk, TamasUNSPECIFIEDhttps://orcid.org/0000-0001-8662-3484151392625
Karl, SebastianUNSPECIFIEDhttps://orcid.org/0000-0002-5558-6673UNSPECIFIED
Date:July 2023
Journal or Publication Title:10th EUCASS – 9th CEAS Conference 2023
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-10
EditorsEmailEditor's ORCID iDORCID Put Code
Keywords:Re-usable, launcher, cfd, subsonic
Event Title:10th EUCASS – 9th CEAS Conference 2023
Event Location:Lausanne, Switzerland
Event Type:international Conference
Event Start Date:9 July 2023
Event End Date:13 July 2023
Organizer:EUCASS - CEAS
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: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Spacecraft, GO
Deposited By: Bykerk, Tamas
Deposited On:19 Jul 2023 13:51
Last Modified:24 Apr 2024 20:55

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