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Experimental Study of SHEFEX II Hypersonic Aerodynamics and Canard Efficiency in H2K

Neeb, Dominik und Gülhan, Ali (2011) Experimental Study of SHEFEX II Hypersonic Aerodynamics and Canard Efficiency in H2K. In: Proceedings of the 7th European Symposium on Aerothermodynamics, 692. ESA Communications, ESTEC, Noordwijk, The Netherlands. 7th European Symposium on Aerothermodynamics, 9-12 May 2011, Brugge, Belgium. ISBN 978-92-9092-256-8. ISSN 1609-042X

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Kurzfassung

One main objective of the DLR SHEFEX programme is to prove that sharp edged vehicles are capable of performing a re-entry into earth atmosphere by using a simple thermal protection system consisting of flat ceramic tiles. In comparison to blunt nose configurations like the Space shuttle, which are normally used for re-entry configurations, the SHEFEX TPS design is able to significantly reduce the costs and complexity of TPS structures and simultaneously increase the aerodynamic performance of the flight vehicle [1], [2]. To study its characteristics and perform several defined in-flight experiments during re-entry, the vehicle’s attitude will be controlled actively by canards [3]. In the framework of the SHEFEX II project an experimental investigation has been conducted in the hypersonic wind tunnel H2K to characterize the aerodynamic performance of the vehicle in hypersonic flow regime. The model has a modular design to enable the study of a variety of different influencing parameters. Its 4 circumferential canards have been made independently adjustable to account for the simulation of different manoeuvre conditions. To study the control behaviour of the vehicle and validate CFD data, a variation of canard deflections, angle of attack and angle of sideslip have been applied. Tests have been carried out at Mach 7 and 8.7 with a Reynolds number sensitivity study at the lower Mach number. The model was equipped with a six component internal balance to realize accurate coefficient measurements. The flow topology has been analyzed using Schlieren images. Beside general aerodynamic performance and canard efficiencies, flow phenomena like shock impingement on the canards could be determined by Schlieren images as well as by the derived coefficients.

Dokumentart:Konferenzbeitrag (Paper)
Titel:Experimental Study of SHEFEX II Hypersonic Aerodynamics and Canard Efficiency in H2K
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Neeb, DominikDLR
Gülhan, AliDLR
Datum:2011
Erschienen in:Proceedings of the 7th European Symposium on Aerothermodynamics
Referierte Publikation:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Band:692
Verlag:ESA Communications, ESTEC, Noordwijk, The Netherlands
Name der Reihe:ESA Special Publication
ISSN:1609-042X
ISBN:978-92-9092-256-8
Status:veröffentlicht
Stichwörter:Hypersonic, Aerodynamics, SHEFEX, Static stability, H2K
Veranstaltungstitel:7th European Symposium on Aerothermodynamics
Veranstaltungsort:Brugge, Belgium
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:9-12 May 2011
Veranstalter :European Space Agency
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:keine Zuordnung
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L - keine Zuordnung
DLR - Teilgebiet (Projekt, Vorhaben):L -- keine Zuordnung
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Über- und Hyperschalltechnologien
Hinterlegt von: Dominik Neeb
Hinterlegt am:13 Jan 2012 08:29
Letzte Änderung:13 Jan 2012 08:29

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