Shape of shock wave produced by a concentrated impact on a surface
Abstract
An approximate similarity solution, derived by Raizer, of a concentrated impact (or intense explosion) at the boundary of a semiinfinite volume of a perfect gas is used to determine the propagation velocity of the shock front as a function of its position. This velocity function is then used to obtain the shape of the propagating shock wave. It is shown that dishshaped shock fronts are formed when the movement of the gas at the surface is into the gas region and that cupshaped shock fronts are formed when the movement is out of the gas region. Comparison of these results with the shapes of explosions and meteorite craters are discussed.
 Publication:

Physics of Fluids
 Pub Date:
 December 1981
 DOI:
 10.1063/1.863328
 Bibcode:
 1981PhFl...24.2143N
 Keywords:

 Gas Dynamics;
 Propagation Velocity;
 Shock Wave Profiles;
 Shock Wave Propagation;
 Solid Surfaces;
 Approximation;
 Boundary Value Problems;
 Flow Velocity;
 Mathematical Models;
 Planetary Craters;
 Shock Fronts;
 Shock Wave Generators;
 Waveforms;
 Fluid Mechanics and Heat Transfer