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Advance of Scramjet Operating Mode Comprehension based on Shock Tunnel Experiments and Numerical Modelling

Hannemann, Klaus (2018) Advance of Scramjet Operating Mode Comprehension based on Shock Tunnel Experiments and Numerical Modelling. In: 69th International Astronautical Congress (IAC). 69th International Astronautical Congress (IAC), 1.-5. Oktober 2018, Bremen, Deutschland.

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Offizielle URL: https://www.iac2018.org/program/scientific-program/

Kurzfassung

For future hypersonic transport aircraft or space launch vehicles based on combined cycle engines, the supersonic combustion ramjet (scramjet) is a promising component of the propulsion system. In particular for atmospheric flight Mach numbers in excess of 8, shock tunnel facilities are well suited to duplicate these flight conditions. The focus of the present article is to provide a review of selected important achievements obtained in free piston driven shock tunnel facilities. Research activities conducted in laboratories around the globe will be highlighted followed by a more detailed discussion of the combined experimental and numerical work performed on hydrogen fuelled integrated scramjet configurations at the German Aerospace Center (DLR). The ground based testing was conducted in the High Enthalpy Shock Tunnel Göttingen (HEG) and the computations were performed utilizing the DLR TAU code. Among the considered configurations is the Australian HyShot II flight test vehicle. It is considered to be well suited for fundamental combustor investigations and numerical tool validation purposes. Benchmark data were compiled in HEG related to different combustor modes. These data are related to the nominal operating mode and additionally to the response of the HyShot II combustor to equivalence ratios close to the critical value at which the onset of thermal choking occurs. The detailed analysis of the developing shock train and its unexpected behaviour revealed new insight into the combustor flow generated by localized thermal choking. A small scale flight experiment was designed in the framework of the European Commission co-funded LAPCAT II project. The complete scramjet flow path was subsequently tested in HEG and the numerically predicted positive aero-propulsive balance could be demonstrated by utilizing the free flight force measurement technique based on optical tracking.

elib-URL des Eintrags:https://elib.dlr.de/123265/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Advance of Scramjet Operating Mode Comprehension based on Shock Tunnel Experiments and Numerical Modelling
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Hannemann, Klausklaus.hannemann (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:Oktober 2018
Erschienen in:69th International Astronautical Congress (IAC)
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:supersonic combustion ramjet, free piston driven shock tunnel, hydrogen combustion, ground based testing, numerical modelling
Veranstaltungstitel:69th International Astronautical Congress (IAC)
Veranstaltungsort:Bremen, Deutschland
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:1.-5. Oktober 2018
Veranstalter :International Astronautical Federation
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 - Wiederverwendbare Raumfahrtsysteme und Antriebstechnologie
Standort: Göttingen
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Raumfahrzeuge, GO
Hinterlegt von: Hannemann, Prof. Dr. Klaus
Hinterlegt am:20 Nov 2018 18:51
Letzte Änderung:20 Nov 2018 18:51

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