Modeling Hydrodynamic Nonequilibrium in Cavitating Flows-Reference-Cited by-同舟云学术

Modeling Hydrodynamic Nonequilibrium in Cavitating Flows

Published:1996-03-01 Issue:1 Volume:118 Page:172-178
ISSN:0098-2202
Container-title:Journal of Fluids Engineering
language:en
Short-container-title:

Author:

Chen Yongliang¹,Heister S. D.¹

Affiliation:

1. School of Aeronautics and Astronautics, Purdue University, 1282 Grissom Hall, West Lafayette, IN 47907

Abstract

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.

Publisher

ASME International

Subject

Mechanical Engineering

Link

http://asmedigitalcollection.asme.org/fluidsengineering/article-pdf/118/1/172/5540614/172_1.pdf

Reference24 articles.

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2. Ceccio S. L. , and BrennenC. E., 1992, “Dynamics of Attached Cavities on Bodies of Revolution,” ASME JOURNAL OF FLUIDS ENGINEERING, Vol. 114, pp. 93–99.

3. Chen Y. , and HeisterS. D., 1994a, “Two-Phase Modeling for Cavitating Flows,” Cavitation and Gas-Liquid Flows in Fluid Machinery and Devices, FED-Vol. 190, pp. 299–307.

4. Chen, Y., and Heister, S. D., 1994b, “A Numerical Treatment for Attached Cavitation,” to appear in ASME JOURNAL OF FLUIDS ENGINEERING.

5. Chahine, G. L., 1989, “A Numerical Model of Three-Dimensional Bubble Dynamics in Complex Flow Configurations,” Twenty Second Meeting of the American Towing Tank Conference, St. John’s, Newfoundland.

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