Numerical investigation of the propagation of shock waves in rigid porous materials: Solution of the Riemann problem

Presents a numerical solution to the Riemann problem inside a porous material using a TVD‐ based computer code which was developed during the investigation of the head‐on collision of planar shock waves with rigid porous materials. The numerical solution revealed that although the compaction wave propagates with a constant velocity, the flow field induced by it is not self‐similar. Since such a problem cannot be set up in a conventional shock tube, the present study should be considered as a theoretical one.