Explosions on a gas-vacuum interface

Details Explosions on a gas-vacuum interface Explosions on a gas-vacuum interface

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981phfl...24.2150n&link_type=abstract

Physics of Fluids, vol. 24, Dec. 1981, p. 2150-2153.

Physics

2

Gas Explosions, Meteorite Collisions, Shock Wave Profiles, Shock Wave Propagation, Vacuum, Computerized Simulation, Euler Equations Of Motion, Finite Difference Theory, Propagation Velocity, Shock Fronts

Scientific paper

The development of an explosion on a gas-vacuum interface is calculated by a finite-difference computer code, and an analytic theory of the shape of the shock wave produced in the explosion is compared with the computer simulation results. It is found that: (1) the self-similar nature of the shock variables is verified by the numerical simulation, with both the radial extent of the shock and the axial depth being successfully described; (2) the total mass and energy of the shock also scale according to the similarity expressions presented; and (3) the shock propagation speed is linearly dependent on the axial coordinate. The nearly-spherical shock front generated under the enumerated circumstances by a point explosion is verified by the numerical calculations.

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