文档介绍:Combustion, Explosion, and Shock Waves, Vol. 36, No. 6, 2000
ic Field and Current Waves
in a pressed by a Shock Wave
in a ic Field
S. D. Gilev1 and T. Yu. Mikhailova2 UDC :
Translated from Fizika Goreniya i Vzryva, Vol. 36, No. 6, pp. 153–163, November–December, 2000.
Original article submitted October 28, 1999.
A physically correct and mathematically rigorous solution of the problem on the
structure of an ic field formed when a shock wave enters a conduct-
ing half-space in a transverse ic field is obtained. It is shown that only
physically grounded boundary conditions lead to a noncontrovercial pattern of the
ic field and a system of currents in a conductor. The main param-
eters and characteristic times are found, which determine the structure of cur-
rent waves in a metal. The solution in the pressed region is determined by
2
the parameter R1 = µ0σ1D t and that in pressed region by the parameter
2
R2 = µ0σ2(D − U) t (σ1 and σ2 are the electric conductivities of the pressed
pressed substance, respectively, µ0 is the ic permeability of vacuum,
D is the wave-front velocity, U is the mass velocity, and t is the time). The parameter
for pressed substance R2 coincides with the parameter obtained previously
for the shock-wave dielectric–metal transition; the governing parameter for the un-
compressed substance R1 is obtained for