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Dankert, C. und Gundlach, G. und Legge, H. und Beck, W. (1992) Temperature Measurement in Hypersonic Flow by LIF. 18th Rarefied Gas Dynamics Symposium (RGD), Vancouver/Canada 26.7.-31.7.92.
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Kurzfassung
A method for measurement of temperatures and densities in rarefied flow is Laser Induced Fluorescence (LIF) spectroscopy with is applied to reentry simulation of Hermes, Saenger, and the Shuttle in wind tunnels. The strong non-equilibrium of rotational and vibrational temperature is typical of hypersonic wind tunnels due to the rapid expansion in Laval nozzles or free jets. LIF excitation spectra of nitric oxide, NO, were measured in a hot supersonic free jet expansion in the vacuum wind tunnel at Goettingen in a wide density range (10^12 - 10^16 molecules/cm^3). To interpret the experimental results, a computer programm was developed that calculates excitation spectra. By means of the LIF measurements in the free jet flow and in front of a model surface details of the heattransfer can be examined. This is relevant for the gas-surface interaction of reentry vehicles.
| elib-URL des Eintrags: | https://elib.dlr.de/36909/ | ||||||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||
| Zusätzliche Informationen: | LIDO-Berichtsjahr=1992, pages=9, | ||||||||||||||||||||
| Titel: | Temperature Measurement in Hypersonic Flow by LIF | ||||||||||||||||||||
| Autoren: |
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| Datum: | 1992 | ||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||
| Stichwörter: | Laser Induced Fluorescence, Hypersonic Flow, Wind Tunnel, Free Jet Expansion, Rotational Temperature, Nonequilibrium Flows | ||||||||||||||||||||
| Veranstaltungstitel: | 18th Rarefied Gas Dynamics Symposium (RGD), Vancouver/Canada 26.7.-31.7.92 | ||||||||||||||||||||
| HGF - Forschungsbereich: | NICHT SPEZIFIZIERT | ||||||||||||||||||||
| HGF - Programm: | keine Zuordnung | ||||||||||||||||||||
| HGF - Programmthema: | keine Zuordnung | ||||||||||||||||||||
| DLR - Schwerpunkt: | NICHT SPEZIFIZIERT | ||||||||||||||||||||
| DLR - Forschungsgebiet: | keine Zuordnung | ||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | NICHT SPEZIFIZIERT | ||||||||||||||||||||
| Standort: | Köln-Porz , Braunschweig , Göttingen | ||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Institut für Strömungsmechanik > Institut für Experimentelle Strömungsmechanik | ||||||||||||||||||||
| Hinterlegt von: | DLR-Beauftragter, elib | ||||||||||||||||||||
| Hinterlegt am: | 03 Apr 2006 | ||||||||||||||||||||
| Letzte Änderung: | 27 Apr 2009 10:07 |
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