Experimental measurement and numerical modeling of cavitating flow in converging-diverging nozzle
Brno University of Technology, Faculty of Mechanical Engineering, Technická 2896/2, Brno 61669,
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2 Brno University of Technology, Faculty of Civil Engineering, Veveří, Brno 61669,
Paper presents results of the experimental research and computational modeling aimed on cavitating vortical structures induced by swirling flow. An experimental circuit was built with swirl generator and converging-diverging nozzle made of plexiglass. Cavitating zone develops along the nozzle axis due to balance of pressure and centrifugal forces. Resulting vortical structure is unstable, which is manifested by pulsations. Computational modelling of the one-phase flow is carried out and results are confronted with experimental data and the different modelling approaches are discussed.
© Owned by the authors, published by EDP Sciences, 2012