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Sharp Interface Cavitation Modeling Using Volume-of-Fluid and Level Set Methods

[+] Author Affiliations
Thad Michael

Naval Surface Warfare Center, Carderock Division, Bethesda, MD

Jianming Yang, Frederick Stern

University of Iowa, Iowa City, IA

Paper No. FEDSM2013-16479, pp. V002T06A008; 10 pages
doi:10.1115/FEDSM2013-16479
From:
  • ASME 2013 Fluids Engineering Division Summer Meeting
  • Volume 2, Fora: Cavitation and Multiphase Flow; Fluid Measurements and Instrumentation; Microfluidics; Multiphase Flows: Work in Progress
  • Incline Village, Nevada, USA, July 7–11, 2013
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-5558-4
  • Copyright © 2013 by ASME

abstract

A sharp interface cavitation modeling methodology is presented. A simplified Rayleigh-Plesset equation is used to obtain the phase change rate from the local pressure. The phase change rate is expressed as mass flux jump conditions. The phase interface is tracked using a second-order volume-of-fluid method with a constructed level set function. The interface normal velocity jump is extended into the flow field using a fast marching method. A ghost fluid method is used to prevent difficulties computing high-order derivatives near the interface. Two separate intermediate velocity fields from the momentum equation are solved considering the velocity jump conditions. Some preliminary results will be demonstrated to show the promise of the present approach.

Copyright © 2013 by ASME
Topics: Fluids , Cavitation , Modeling

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