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

• Published in: Journal of fluid mechanics 2006-09, Vol.563, p.159-188
• Main Authors: LEVI-HEVRONI, D., LEVY, A., BEN-DOR, G., SOREK, S.
• Format: Article
• Language: English
• Subjects: Compressible flows; shock and detonation phenomena; Exact sciences and technology; Flows through porous media; Fluid dynamics; Fluid mechanics; Fundamental areas of phenomenology (including applications); Nonhomogeneous flows; Physics; Pores; Porous media; Shock waves; Shock-wave interactions and shock effects; Shock-wave interactions and shockeffects
• ISSN: 0022-1120; 1469-7645
• DOI: 10.1017/S0022112006001133

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.