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International Journal for Multiscale Computational Engineering
Factor de Impacto: 1.016 Factor de Impacto de 5 años: 1.194 SJR: 0.554 SNIP: 0.82 CiteScore™: 2

ISSN Imprimir: 1543-1649
ISSN En Línea: 1940-4352

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.v4.i3.70
pages 377-389

Comparison of Heterogeneous and Homogenized Numerical Models of Cavitation

Roman Samulyak
Computational Science Center, Brookhaven National Laboratory, Upton, NY 11973, USA
Yarema Prykarpatskyy
WMS, AGH University of Science and Technology, Al. Mickiewicza 30, 30059 Krakow, Poland
Tianshi Lu
Computational Science Center, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
James Glimm
Computational Science Center, Brookhaven National Laboratory, Upton, NY 11973; and Department of Applied Mathematics and Statistics, SUNY at Stony Brook, Stony Brook, NY 11794, USA
Zhiliang Xu
Computational Science Center, Brookhaven National Laboratory, Upton, NY 11973-5000
Myoung-Nyoun Kim
Department of Mathematics, Kyushu University, Fukuoka-city, 812-8581 Japan

SINOPSIS

We have studied two approaches to the modeling of bubbly and cavitating fluids. The heterogeneous approach is based on the direct numerical simulation of gas bubbles using the interface tracking technique. The second one uses a homogenized description of bubbly fluid properties. Two techniques are complementary and can be applied to resolve different spatial scales in simulations. Numerical simulations of the dynamics of linear and shock waves in bubbly fluids have been performed and compared to experiments and theoretical predictions. Two techniques have been applied to the study of hydrodynamic processes in liquid mercury targets for a new generation of accelerators.


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