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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, 19.04.2011, 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 | ||||||||||||||||||||||||||||||||||||
| Gold 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: | 19.04.2011 | ||||||||||||||||||||||||||||||||||||
| Veranstalter : | Joseph E. Shepherd | ||||||||||||||||||||||||||||||||||||
| HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||||||||||||||||||||||||||||||
| HGF - Programm: | Weltraum (alt) | ||||||||||||||||||||||||||||||||||||
| HGF - Programmthema: | W RP - Raumtransport | ||||||||||||||||||||||||||||||||||||
| DLR - Schwerpunkt: | Weltraum | ||||||||||||||||||||||||||||||||||||
| DLR - Forschungsgebiet: | W RP - Raumtransport | ||||||||||||||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | W - Projekt IMENS-3C (alt) | ||||||||||||||||||||||||||||||||||||
| Standort: | Göttingen | ||||||||||||||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Raumfahrzeuge | ||||||||||||||||||||||||||||||||||||
| Hinterlegt von: | Wagner, Alexander | ||||||||||||||||||||||||||||||||||||
| Hinterlegt am: | 18 Mai 2011 14:19 | ||||||||||||||||||||||||||||||||||||
| Letzte Änderung: | 18 Mai 2011 14:19 |
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