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Gawehn, Thomas und Gülhan, Ali und Giglmaier, Marcus und Quaatz, Jan Frederik und Adams, N.A. (2012) Analysis of gap influence on pseudo-shock system asymmetry in rectangular Laval nozzles. 20th International Shock Interaction Symposium, August 20-24, 2012, Stockholm, Sweden.
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Kurzfassung
A pseudo-shock system in a rectangular nozzle with parallel side walls is investigated at different pre-shock Mach numbers by means of wall pressure measurements and high-speed schlieren visualization. In detail, we analyze the effect of small streamwise gaps (Δz = O(10^-4) m) between constructional elements. An asymmetrical pseudo-shock system is observed for a gap-free configuration whereas configurations including small gaps show a symmetric behavior. Furthermore, the internal structure of the entire pseudo-shock system visibly changes by increasing the gap width. A detailed analysis of pressure measurements as well as high speed schlieren images is shown and possible explanations are discussed.
| elib-URL des Eintrags: | https://elib.dlr.de/78103/ | ||||||||||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||
| Titel: | Analysis of gap influence on pseudo-shock system asymmetry in rectangular Laval nozzles | ||||||||||||||||||||||||
| Autoren: |
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| Datum: | August 2012 | ||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||
| Stichwörter: | pseudo-shock system, shock asymmetry, longitudinal gaps | ||||||||||||||||||||||||
| Veranstaltungstitel: | 20th International Shock Interaction Symposium | ||||||||||||||||||||||||
| Veranstaltungsort: | Stockholm, Sweden | ||||||||||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||
| Veranstaltungsdatum: | August 20-24, 2012 | ||||||||||||||||||||||||
| Veranstalter : | KTH Royal Institute of Technology | ||||||||||||||||||||||||
| 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 - Raumfahrzeugsysteme - Anlagen u. Messtechnik (alt) | ||||||||||||||||||||||||
| Standort: | Köln-Porz | ||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Über- und Hyperschalltechnologien | ||||||||||||||||||||||||
| Hinterlegt von: | Gawehn, Dr.-Ing. Thomas | ||||||||||||||||||||||||
| Hinterlegt am: | 06 Nov 2012 08:38 | ||||||||||||||||||||||||
| Letzte Änderung: | 22 Nov 2012 16:32 |
Verfügbare Versionen dieses Eintrags
- Analysis of gap influence on pseudo-shock system asymmetry in rectangular Laval nozzles. (deposited 06 Nov 2012 08:38) [Gegenwärtig angezeigt]
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