Modeling hydrodynamic nonequilibrium in cavitating flows
Journal Article
·
· Journal of Fluids Engineering
- Purdue Univ., West Lafayette, IN (United States). School of Aeronautics and Astronautics
A nonlinear numerical model has been developed to assess nonequilibrium effects in cavitating flows. The numerical implementation involves a two-phase treatment with the use of a pseudo-density which varies between the liquid and gas/vapor extremes. A new constitutive equation for the pseudo-density is derived based on the bubble response described by a modified form of the Rayleigh-Plesset equation. Use of this constitutive equation in a numerical procedure permits the assessment of nonequilibrium effects. This scheme provides a quantitative description of scaling effects in cavitated flows. With minimal modifications, the model can also be used for bubbly two-phase flows.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 215430
- Journal Information:
- Journal of Fluids Engineering, Vol. 118, Issue 1; Other Information: PBD: Mar 1996
- Country of Publication:
- United States
- Language:
- English
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