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 semi-infinite 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 dish-shaped shock fronts are formed when the movement of the gas at the surface is into the gas region and that cup-shaped 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