Shock Waves

, Volume 23, Issue 6, pp 583–594 | Cite as

Numerical investigations of the porosity effect on the shock focusing process

Original Article

Abstract

The effect of cylindrical obstacles and the porosity in between them along the path of a converging cylindrical shock is studied through numerical simulations. An initially cylindrical converging shock wave is perturbed by cylindrical obstacles placed radially in its path. High pressures and temperatures are achieved as the shock wave is focused. Results show that the shape of the shock wave close to the point of convergence as well as the porosity and type of shock wave reflection the converging shock undergoes influence the peak values. Various configurations of the obstacle size and number are considered. The Guderley constant for each case is compared with previous reported experimental values.

Keywords

Shock focusing Regular reflection  Irregular reflection Overlapping structured grids 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.University of Southern CaliforniaLos AngelesUSA

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