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Air shock wave interaction with an obstacle covered by porous material
Authors:A A Gubaidullin  A Britan  D N Dudko
Institution:(1) Tyumen Branch of Institute of Theoretical and Applie Mechanics, SB RAS, Taymirskaya St. 74, 625000 Tyumen, Russia;(2) Department of Mechanical Engineering, Ben-Gurion University of the Negev, POB 653, 84105 Beer-Sheva, Israel
Abstract:The interaction between an air shock wave and a rigid wall covered by a porous screen is investigated numerically and experimentally. A mathematical two velocity with two stress tensors model is used for studying the wave processes in saturated porous media. The process of reflection of a step-type wave from a rigid wall covered with a porous layer is considered, the effect of the porous medium and wave parameters on the reflection is analyzed, and the numerical results are compared with the experimental data.Received: 30 July 2002, Accepted: 24 December 2002, Published online: 27 May 2003
Keywords:Shock wave  Porous layer  Rigid wall  Reflection
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