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In this contribution we report on modeling underwater explosion in the framework
of molecular dynamics. We have developed a computer program which allows studying
the underwater explosion in two dimensional Lennard - Jones liquid. For studying
the structure of shock waves, a special technique was developed. It allowed observing
the form of a shock wave and estimating its velocity. The most striking result of
the investigation is that the shape of a shock wave is changing with time as if the shock wave
disintegrated into two parts. The phenomenon is analyzed similar to the approach accepted for
solitons. An equation for two-dimensional shock waves which generalizes the Korteweg-de
Vries equation for a one-dimensional medium is suggested.
Keywords: underwater explosion; molecular hydrodynamics; modeling |
full paper (pdf, 3872 Kb)