Abstract

The Photon Density Effect in the Structure of Shock Wave

V.A.Belokogne (Academia Cosmonautica, Moscow, Russia)

e-mail: valentine_belokogne@mtu-net.ru

The peculiarity of the radiative (heat conduction dominated) shock structure consists in the possibility both to disappearing and appearing of prominent subshock - isothermal discontinuity which is dependent on the relation of photon number density to matter density n(ph)/n(m) =1.11p(ph)/p(m) ~ T^3/n(m), and on the effective number f degrees of freedom for the matter particles f(m) =f = 2E/n(m)kT at f(photon) = 6. The increase of the isothermal shock [due to radiation] is the fact for the postshock pressures relation 0 <= [p(ph)/p(m)] <= (1 -f/3), i.e. appeared both for f =1 at Cp/Cv =3 and for f=2 at Cp/Cv = 2. The realization of like phenomena is possible during supernova explosion and as a result of very intense laser-plasma interaction.

Section : 1