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research
Implicit large eddy simulation of unsteady cloud cavitation around a plane-convex hydrofoil
Authors
Alvaro Aguinaga
Francesc Xavier Escaler Puigoriol
+3 more
Victor Hidalgo
Bin Ji
Xian-wu Luo
Publication date
1 January 2015
Publisher
'Elsevier BV'
Doi
Cite
Abstract
The present paper focuses on the erosive cavitation behavior around a plane convex hydrofoil. The Zwart-Gerber-Belamri cavitation model is implemented in a library form to be used with the OpenFOAM. The implicit large eddy simulation (ILES) is applied to analyze the three dimensional unsteady cavitating flow around a plane convex hydrofoil. The numerical results in the cases under the hydrodynamic-conditions, which were experimentally tested at the high speed cavitation tunnel of the École Polytechnique Fédérale de Lausanne (EPFL), clearly show the sheet cavitation development, the shedding and the collapse of vapor clouds. It is noted that the cavitation evolutions including the maximum vapor length, the detachment and the oscillation frequency, are captured fairly well. Furthermore, the pressure pulses due to the cavitation development as well as the complex vortex structures are reasonably well predicted. Consequently, it may be concluded that the present numerical method can be used to investigate the unsteady cavitation around hydrofoils with a satisfactory accuracy. © 2015 Publishing House for Journal of Hydrodynamics.Postprint (author's final draft
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Last time updated on 16/06/2016