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Aerothermal Analysis of Reusable Launcher Systems during Retro-Propulsion Reentry and Landing

Ecker, Tobias and Zilker, Franziska and Dumont, Etienne and Karl, Sebastian and Hannemann, Klaus (2018) Aerothermal Analysis of Reusable Launcher Systems during Retro-Propulsion Reentry and Landing. Space Propulsion Conference 2018, 14.-18. Mai 2018, Sevilla, Spanien.

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Official URL: https://spacepropulsion2018.com/

Abstract

The structural and thermal loads during first stage reentry may impact significantly the structural and thermal design and thus influence the payload perfor- mance and launch service cost of expendable launch vehicles. Many studies have focused on the effect of counterflowing jets emanating from blunt capsules on drag and aerothermal fluxes. However, for slender rocket shape bodies the database is still sparse. For this purpose CFD studies of the flow fields around a reusable first stage during reentry at freestream Mach numbers between 9.45 and 5.09 were carried out in close conjunction with the system analysis and trajec- tory design of potential future European carrier sys- tems. The results of this study show that the inte- gral heat uptake with hot retro-propulsion is gener- ally higher than heat uptake at a ballistic state. How- ever, the supersonic retro-propulsion maneuver redis- tributes the high heat loads from the baseplate area to the entire vehicle surface, therefore reducing local thermal loads.

Item URL in elib:https://elib.dlr.de/120072/
Document Type:Conference or Workshop Item (Speech)
Title:Aerothermal Analysis of Reusable Launcher Systems during Retro-Propulsion Reentry and Landing
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ecker, TobiasTobias.Ecker (at) dlr.dehttps://orcid.org/0000-0001-7134-1185
Zilker, FranziskaUNSPECIFIEDUNSPECIFIED
Dumont, EtienneEtienne.Dumont (at) dlr.dehttps://orcid.org/0000-0003-4618-0572
Karl, Sebastiansebastian.karl (at) dlr.deUNSPECIFIED
Hannemann, KlausKlaus.Hannemann (at) dlr.deUNSPECIFIED
Date:15 May 2018
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Reusability, RLV, VTVL, LOx/LH2, Retro-Propulsion, CFD
Event Title:Space Propulsion Conference 2018
Event Location:Sevilla, Spanien
Event Type:international Conference
Event Dates:14.-18. Mai 2018
Organizer:3AF
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Projekt X-TRAS, R - Raumfahrzeugsysteme - Numerische Verfahren und Simulation, R - Raumfahrzeugsysteme - Rückkehrtechnologie
Location: Bremen , Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Spacecraft, GO
Institute of Space Systems > Space Launcher Systems Analysis
Deposited By: Ecker, Tobias
Deposited On:31 May 2018 14:08
Last Modified:31 Jul 2019 20:17

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