Modeling Hydrodynamic Nonequilibrium in Cavitating Flows

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

Reference24 articles.

1. Arakeri V. H. , 1975, “Viscous Effects on the Position of Cavitation Separation from Smooth Bodies,” Journal of Fluid Mechanics, Vol. 68, pp. 779–799.

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.

Cited by 85 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3