Numerical Modelling of Unsteady Partial Cavities Behind a Backward Facing Step

Maitre, Thierry and Pellone, Christian (2001) Numerical Modelling of Unsteady Partial Cavities Behind a Backward Facing Step. In: CAV 2001: Fourth International Symposium on Cavitation, June 20-23, 2001, California Institute of Technology, Pasadena, CA USA.

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Abstract

This paper presents some calculation results in the cases of steady and non-steady partial cavity. These results are obtained with the commercial Navier-Stokes codes FLUENT and STAR-CD and compared with experimental results. Under cavitation conditions the first code uses a bubbles two-phase model. The second code uses the VOF (volume of fluid) technique to calculate the interface and allows the use of either the barotropic or the bubbles two-phase model. Different arrangements of the three parameters step height, channel confinement and cavitation number are examined. Cavities observed experimentally are compared with that obtained by the calculation. We investigate the ability of the models to reproduce the non-steady behaviours (re-entrant jet thickness, shedding frequencies).

EPrint Type:	Conference or Workshop Item (Lecture)
Additional Information:	Could you arrange the electronic library in order to find the paper by typing the name of the both two authors: Thierry Maitre and Christian Pellone. Thank you
Uncontrolled Keywords:	cavitation numerical modelling
Subjects:	All Records Session B2 Attached Cavitation 2
ID Code:	116
Deposited By:	Thierry Maitre
Deposited On:	08 May 2001
Record Number:	CAV2001:sessionB2.002
Official Persistent URL:	http://resolver.caltech.edu/CAV2001:sessionB2.002
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