Journal
PHYSICS OF FLUIDS
Volume 28, Issue 7, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4958885
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Funding
- National Natural Science Foundation of China [11402276]
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Bubble size distributions in cloud cavitation are important in cavitating flows. In this study, a numerical model was developed to study the evolution of the internal structure of cloud cavitation. The model includes (1) an evolution equation of bubble number density, which considers the bubble breakup effect and (2) the multiphase Reynolds-averaged Navier-Stokes equations with a modified cavitation model for background cavitating flows. The proposed model was validated with a flow over a projectile. Results show that the numerical model can predict the evolution of the internal structure of cloud cavitation. Comparisons of the proposed model and Singhal model were discussed. The effects of re-entrant jet and bubble number density on cavitating flows were also investigated. Published by AIP Publishing.
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