Wagner, Alexander und Laurence, Stuart und Martinez Schramm, Jan und Hannemann, Klaus und Wartemann, Viola und Lüdeke, Heinrich und Tanno, Hideyuki und Ito, Katsuhiro (2011) Experimental investigation of hypersonic boundary-layer transition on a cone model in the High Enthalpy Shock Tunnel (HEG) at Mach 7.5. Seminar, 2011-04-19, California Institute of Technology (Caltech), Los Angeles, Kalifornien.
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Kurzfassung
Hypersonic boundary-layer transition on a 7 half-angle cone was investigated experimentally iin the DLR High Enthalpy Shock Tunnel Göttingen (HEG) at Mach 7.5. The cone model, provided by the Japan Aerospace Exploration Agency (JAXA), has a length of 1100mm and was tested with nose radii of 2.25mm and 5mm. The free-stream unit Reynolds number was varied over the range of 1.2*10^6 /m to 6.2*10^6 /m at a stagnation enthalpy of H0 = 3.3MJ/kg. The model was equipped with co-axial thermocouples to determine the transition location by means of the surface heat-flux distribution. Ten flush mounted piezoelectric fast-response pressure transducers were used to measure the pressure fluctuations in the boundary-layer associated with second mode instabilities. The results are compared to stability calculations conducted with the DLR NOn-LOcal Transition analysis code, NOLOT.
elib-URL des Eintrags: | https://elib.dlr.de/69684/ | ||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||
Titel: | Experimental investigation of hypersonic boundary-layer transition on a cone model in the High Enthalpy Shock Tunnel (HEG) at Mach 7.5 | ||||||||||||||||||
Autoren: |
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Datum: | 2011 | ||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||
Stichwörter: | HEG, transition, hypersonic flow, cone, Mach 8, Mack modes, second mode instability, stability analysis, NOLOT | ||||||||||||||||||
Veranstaltungstitel: | Seminar | ||||||||||||||||||
Veranstaltungsort: | California Institute of Technology (Caltech), Los Angeles, Kalifornien | ||||||||||||||||||
Veranstaltungsart: | Andere | ||||||||||||||||||
Veranstaltungsdatum: | 19 April 2011 | ||||||||||||||||||
Veranstalter : | Joseph E. Shepherd | ||||||||||||||||||
DLR - Schwerpunkt: | Weltraum | ||||||||||||||||||
DLR - Forschungsgebiet: | W RP - Raumtransport | ||||||||||||||||||
Standort: | Göttingen | ||||||||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Raumfahrzeuge |
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