Simulation of radiation expansion of laser plasma in external magnetic field

Radiation expansion of laser plasma in external magnetic field is investigated in this work. Two-dimensional system of ideal magnetohydrodynamics with radiative transfer in cylindrical system of coordinates was solved numerically using second- order conservative TVD difference scheme. Multigroup flux-limited diffusion scheme was applied for solution of radiative transfer equation. At the initial moment heating of target that consist vapors of aluminum is implemented by action short laser pulse with duration time 30 nanoseconds and Gaussian profile by space with half-thickness 0.03 centimeters. Cases with regard and without taking of radiation transfer and inclusion of magnetic field effects are considered. The numerical simulations show that inclusion of radiation transfer changes dynamic of laser expansion quantitatively and qualitatively.