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The interaction of planar shock waves with multiphase saturated flexible porous materials – a numerical investigation

Published online by Cambridge University Press:  01 September 2006

D. LEVI-HEVRONI ,
A. LEVY ,
G. BEN-DOR  and
S. SOREK
D. LEVI-HEVRONI
Affiliation:
Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel
A. LEVY
Affiliation:
Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel
G. BEN-DOR
Affiliation:
Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel
S. SOREK
Affiliation:
Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel Environmental Hydrology and Microbiology, J. Blaustein Desert Research Institutes, Ben-Gurion University of the Negev, Sde Boker Campus, Israel
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Abstract

The three-dimensional governing macroscopic equations of the flow field which is developed when an elasto-plastic highly deformable open-cell porous medium whose pores are uniformly filled with liquid and gas is struck head-on by a planar shock wave, are developed using a multiphase approach. The one-dimensional version of these equations is solved numerically using an arbitrary Lagrangian Eulerian (ALE) based numerical code. The numerical predictions are compared qualitatively to experimental results from various sources and good agreements are obtained. This study complements our earlier studies in which we solved, using an ALE-based numerical code, the one-dimensional governing equations of the flow field which is developed when an elasto-plastic flexible open-cell porous medium, capable of undergoing extremely large deformations, whose pores are saturated with gas only, is struck head-on by a planar shock wave.

Type
Papers
Information
Journal of Fluid Mechanics , Volume 563 , 25 September 2006 , pp. 159 - 188
Copyright
© 2006 Cambridge University Press

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