Title :
Calculation Method of Radiation Spectral Transfer in Frameworks of Two-Dimensional Magnetohydrodynamic Code FLUX-rz
Author :
Repin, Boris Glebovich ; Orlov, Andrey Petrovich ; Repin, Pavel Borisovich ; Selemir, Victor Dmitrievich
Author_Institution :
Sci. & Tech. Center of Phys., All-Russian Res. Inst. of Exp. Phys. (VNIIEF), Sarov, Russia
Abstract :
A magnetohydrodynamic model of irradiating Z-pinch is the basis of a 2-D (in Euler cylindrical coordinates r-z) computer code FLUX-rz developed in VNIIEF (Russia). Earlier, the code considered the thermal radiation transfer in one-group (gray) diffusion approximation. This paper presents a modification of the FLUX-rz code in which we realized a multigroup diffusion model of the radiation transfer. Efficiency of an improved algorithm has been demonstrated by sample calculations of Shot 52 and Shot 567 on Z-machine at Sandia National Laboratories (U.S.).
Keywords :
Z pinch; plasma X-ray sources; plasma magnetohydrodynamics; plasma simulation; plasma transport processes; Euler cylindrical coordinates; FLUX-rz computer code; Z-machine; Z-pinch; high-power pulsed soft X-ray radiation source; multigroup diffusion model; one-group diffusion approximation; radiation spectral transfer; thermal radiation transfer; two-dimensional magnetohydrodynamic code; $Z$ -pinch; Multigroup diffusion approximation; X-ray production; plasma; radiation transfer;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2010.2049126
