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Grabitz, A. und Grabitz, G. (1) und Meier, G.E.A. (1993) Water Crowns in Pulsed Jets. Atlas of Visualization, Progress in Visualization, Vol. 1 (1992) p. 7-18 (Edited by the Visualization Society of Japan), Pergamon Press, 1993, 1, Seiten 7-18. Pergamon Press, Tokyo, Japan.
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Kurzfassung
Experiments were carried out on water jets with an initial velocity perturbation emerging from nozzles with radii R a between 1.5 to 2.5 mm. The mean velocity U was 2.0 to 4.3 m/s. The Weber numbers (We = rho RaU/sigma; rho density; sigma surface tension) were between 140 and 400. A special distortion mechanism produced velocity modulations which were close to being sinusoidal while theiramplitudes were of the order of the mean velocity. The decomposing jets which on first sight seem to have a chaotic structure show a very periodic behavior if stroboscopic visualization is used. Photographic pictures of the jets were compated with the authors kinematic wave therory which neglects the surface tension.
| elib-URL des Eintrags: | https://elib.dlr.de/36991/ | ||||||||||||||||
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| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||
| Zusätzliche Informationen: | LIDO-Berichtsjahr=1993, | ||||||||||||||||
| Titel: | Water Crowns in Pulsed Jets | ||||||||||||||||
| Autoren: |
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| Datum: | 1993 | ||||||||||||||||
| Erschienen in: | Atlas of Visualization, Progress in Visualization, Vol. 1 (1992) p. 7-18 (Edited by the Visualization Society of Japan), Pergamon Press, 1993 | ||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||
| Open Access: | Nein | ||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||
| In ISI Web of Science: | Ja | ||||||||||||||||
| Band: | 1 | ||||||||||||||||
| Seitenbereich: | Seiten 7-18 | ||||||||||||||||
| Verlag: | Pergamon Press, Tokyo, Japan | ||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||
| Stichwörter: | Water crowns, water jets, velocity perturbation, nozzles, Weber numbers, velocity modulations, kinematic wave theorey, surface tension | ||||||||||||||||
| HGF - Forschungsbereich: | NICHT SPEZIFIZIERT | ||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||
| HGF - Programmthema: | keine Zuordnung | ||||||||||||||||
| DLR - Schwerpunkt: | NICHT SPEZIFIZIERT | ||||||||||||||||
| DLR - Forschungsgebiet: | L TG - Querschnittstechnologien | ||||||||||||||||
| 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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