Dular, M. ; Bachert, R. ; Schaad, C. ; Stoffel, B. (2007)
Investigation of a re-entrant jet reflection at an inclined cavity closure line.
In: European Journal of Mechanics B/Fluids, 26
doi: 10.1016/j.euromechflu.2007.01.001
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Cavitation on two-dimensional hydrofoils with swept leading edges always displays some 3-dimensional effects. It is well known that the cavity closure on such hydrofoil is not perpendicular to the channel walls, but is curved in a distinctive pattern. The cavitation pocket is longer in the region where the hydrofoil is the shortest. Also the dynamics of cavitation is very distinctive. In the region where the hydrofoil is the longest attached and steady cavitation with no cloud separation exists. On the other side, where the hydrofoil is the shortest, cavitation cloud separations occur. Different explanations for this pattern were proposed in the past but they have not jet been clearly confirmed neither experimentally nor by numerical simulation. In the present paper a clear explanation supported by the numerical simulation and also by experimental measurements, is given.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2007 |
| Autor(en): | Dular, M. ; Bachert, R. ; Schaad, C. ; Stoffel, B. |
| Art des Eintrags: | Bibliographie |
| Titel: | Investigation of a re-entrant jet reflection at an inclined cavity closure line |
| Sprache: | Englisch |
| Publikationsjahr: | 2 Dezember 2007 |
| Ort: | Paris |
| Verlag: | Gauthier-Villars |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | European Journal of Mechanics B/Fluids |
| Jahrgang/Volume einer Zeitschrift: | 26 |
| DOI: | 10.1016/j.euromechflu.2007.01.001 |
| Kurzbeschreibung (Abstract): | Cavitation on two-dimensional hydrofoils with swept leading edges always displays some 3-dimensional effects. It is well known that the cavity closure on such hydrofoil is not perpendicular to the channel walls, but is curved in a distinctive pattern. The cavitation pocket is longer in the region where the hydrofoil is the shortest. Also the dynamics of cavitation is very distinctive. In the region where the hydrofoil is the longest attached and steady cavitation with no cloud separation exists. On the other side, where the hydrofoil is the shortest, cavitation cloud separations occur. Different explanations for this pattern were proposed in the past but they have not jet been clearly confirmed neither experimentally nor by numerical simulation. In the present paper a clear explanation supported by the numerical simulation and also by experimental measurements, is given. |
| Freie Schlagworte: | Cavitation, Swept leading edge, CFDPIV-LIV method, Re-entrant jet reflection |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Institut für Fluidsystemtechnik (FST) (seit 01.10.2006) |
| Hinterlegungsdatum: | 02 Dez 2008 14:56 |
| Letzte Änderung: | 05 Dez 2024 12:11 |
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