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MODELLING CAPSULE STABILITY ACCOUNTING FOR SHAPE CHANGE

Neeb, Dominik und Seltner, Patrick und Gülhan, Ali und Ferracina, L. (2019) MODELLING CAPSULE STABILITY ACCOUNTING FOR SHAPE CHANGE. International Conference on Flight vehicles, Aerothermodynamics and Re-entry Missions and Engineering (FAR), 2019-09-30 - 2019-10-03, Monopoli, Italien.

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Kurzfassung

Earth return missions or exploration missions use mostly capsule-like shapes, which enter the atmosphere at very high velocities. Some of these missions, like sample return, do not use any parachute or other stabilizing aerodynamic or RCS devices. Therefore, the capsule stability has to be guaranteed solely by the spacecraft configuration from hypersonic conditions down to the subsonic regime at landing. This task is very challenging and requires reliable design tools. However, both experimental and numerical tools still have shortcomings in full simulation or modelling of the flight environment. Therefore, further improvement of these tools by means of complementary application is essential. Most of the exploration missions use an ablative thermal protection system, which experiences shape changes during the hypersonic flight regime. This may lead to a change of the pressure distribution and movement of the center of gravity of the vehicle. Since the vehicle does not have control devices, it can lose its aerodynamic stability and the situation may become critical. The prediction of the Thermal Protection System (TPS) recession over the complete surface with the existing tools is not possible. Therefore, the aerodynamic design should consider it in the margin policy and the flight qualities and risk analysis need to be performed accordingly. The ESA TRP MODSHAPE (Modelling Capsule Stability accounting for Shape Change) addresses the aforementioned challenges and this paper gives an overview of the planned activities and summarizes the main challenges and goals.

elib-URL des Eintrags:https://elib.dlr.de/129800/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:MODELLING CAPSULE STABILITY ACCOUNTING FOR SHAPE CHANGE
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Neeb, DominikDominik.Neeb (at) dlr.dehttps://orcid.org/0000-0002-5848-3055NICHT SPEZIFIZIERT
Seltner, PatrickPatrick.Seltner (at) dlr.dehttps://orcid.org/0000-0002-7706-9220NICHT SPEZIFIZIERT
Gülhan, AliAli.Gülhan (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Ferracina, L.ATG EuropeNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:2019
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Entry, capsule, shape change, low temperature ablator, aerodynamics
Veranstaltungstitel:International Conference on Flight vehicles, Aerothermodynamics and Re-entry Missions and Engineering (FAR)
Veranstaltungsort:Monopoli, Italien
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:30 September 2019
Veranstaltungsende:3 Oktober 2019
Veranstalter :ESA
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Raumtransport
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R RP - Raumtransport
DLR - Teilgebiet (Projekt, Vorhaben):R - Raumfahrzeugsysteme - Rückkehrtechnologie (alt)
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Über- und Hyperschalltechnologien, KP
Hinterlegt von: Neeb, Dominik
Hinterlegt am:12 Nov 2019 13:28
Letzte Änderung:24 Apr 2024 20:33

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