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The classical nucleation theory and modeling of cavitation processes
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SYSNO ASEP 0332863 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title The classical nucleation theory and modeling of cavitation processes Title Klasická nukleační teorie a modelování kavitačních jevů Author(s) Němec, Tomáš (UT-L) RID 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. 236-246 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 nucleation rate ; cavitation ; computational fluid dynamics Subject RIV BK - Fluid Dynamics R&D Projects KJB400760701 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GA101/07/1612 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20760514 - UT-L (2005-2011) Annotation The description of the nucleation of bubbles and their growth in cavitation processes suitable for computational fluid dynamics (CFD) simulations is investigated. The number of newly created bubbles and their sizes are treated empirically in most of the numerical codes. We show that the Classical Nucleation Theory (CNT) can be used to calculate the nucleation probabilities in water. Also a simple model of the growth of the nucleated bubbles is described. The CNT predictions of the nucleation rate show promising results and together with the bubble growth model can be used to enhance the precision of CFD modeling of cavitating flows. 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
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