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Proceedings of the 10th International Symposium on Cavitation (CAV2018)

Editor
Joseph Katz
Joseph Katz
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ISBN:
9780791861851
No. of Pages:
1108
Publisher:
ASME Press
Publication date:
2018

An Eulerian-Lagrangian multi-scale two-phase flow model is presented, which includes a micro-scale model for tracking the microbubbles, a macro-scale model for describing the overall flow field and large cavity dynamics, and a transition model to bridge the micro and macro scales. The method also includes a cavity detection scheme which marks each cavity with an ID index so that each can be tracked and treated individually. This approach was implemented in our CFD code 3DynaFS© and used to simulate, for illustration, multiple bubble dynamics simultaneously released at different locations in a Rankine line vortex. The method captures their growth, entrainment into the vortex core, elongation along the vortex centerline, followed by potential splitting and breakup.

Introduction
Multiscale Two-phase Model
Simulation of Bubble Cavitation in a Line Vortex
Summary
Acknowledgements
References
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