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EROSIVE POTENTIAL OF TRAVELING BUBBLE CAVITATION IN A WATER PUMP – CFD & EXPERIMENT
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SYSNO ASEP 0332865 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title EROSIVE POTENTIAL OF TRAVELING BUBBLE CAVITATION IN A WATER PUMP – CFD & EXPERIMENT Title Erozní potenciál bublinkové kavitace ve vodním čerpadle – numerická simulace a experiment Author(s) Zima, Patrik (UT-L) RID
Sedlář, M. (CZ)
Müller, M. (CZ)Source Title Experimental Fluid Mechanics 2009, Proceedings of the International Conference. - Liberec : Technical University of Liberec, 2009 / Vít T. ; Dančová P. ; Dvořák V. - ISBN 978-80-7372-538-9 Pages s. 432-442 Number of pages 11 s. Publication form CD ROM - CD ROM Action International Conference Experimental Fluid Mechanics 2009 Event date 25.11.2009-27.11.2009 VEvent location Liberec Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords traveling bubble cavitation ; erosive potential ; water pump Subject RIV BK - Fluid Dynamics R&D Projects GA101/07/1612 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20760514 - UT-L (2005-2011) Annotation A model assessing erosive potential of cavitation bubbles for 3D steady-state pump flow in the traveling cavitation mode is proposed. The 3D Navier-Stokes code for turbulent pump flow is coupled with the Rayleigh-Plesset equation by means of two-way coupling. The energy dissipated between two successive bubble rebounds is estimated to assess the erosive potential. The model is validated for a 2D hydrofoil in the cavitation tunnel and then employed for a 3D mixed-flow water pump impeller. The numerical results indicate the dominant effect of the first collapse and are in good agreement with the experiment. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2010
Number of the records: 1