MODELING OF THE IMPACT DYNAMICS OF LARGE METEORIC BODIES 
ON THE SURFACE OF THE PLANET

F. N. Borovik , G. S. Romanov , and
A. S. Smetannikov

UDC 533.6.01

We present a procedure for numerical modeling and 
the results predicted for dynamics of crater formation in asteroid 
impact on the ground in the approximation of two-dimensional gas dynamics 
in an axisymmetric formulation. Gas-dynamic equations are solved using 
a fully conservative difference scheme in Eulerian variables. Predictions 
are performed with both an analytic representation of the equation 
of state (according to Tillotson) and wide-range semiempirical equations 
of state with a phase transition into vapor and a more exact specification 
of cold compression. Consideration is given to impact at a velocity 
of 50 km/sec with body dimensions of the order of 1 km.

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