Sheet Cavitation and Cloud Cavitation, Re-Entrant Jet and Three-Dimensionality |
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| Authors: | D.F. de Lange and G.J. de Bruin |
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| Affiliation: | (1) Faculties of Mechanical Engineering and Applied Physics, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands |
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| Abstract: | The unsteady behaviour of a sheet cavity on a hydrofoil under stationary conditions is important with respect to both noise generation and erosion. Observations of two-dimensional as well as three-dimensional cavities are performed. From the observation it is concluded that the formation of a re-entrant jet is of major importance to explain the unsteadiness. Numerical simulation of the two-dimensional cavitating flow is performed, showing good agreement with the observations. |
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| Keywords: | sheet cavitation cloud shedding Strouhalnumber re-entrant jet three-dimensional flow observations numerical simulation |
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