2D-Lagrangian code LATRANT for simulation of radiation gas dynamic problems

Elena N. Aristova; Alexey B. Iskakov; Ivan G. Lebo; Vladimir F. Tishkin

doi:10.1117/12.536544

12 December 2003 2D-Lagrangian code LATRANT for simulation radiation gas dynamic problems

Elena N. Aristova, Alexey B. Iskakov, Ivan G. Lebo, Vladimir F. Tishkin

Proceedings Volume 5228, ECLIM 2002: 27th European Conference on Laser Interaction with Matter; (2003) https://doi.org/10.1117/12.536544
Event: ECLIM 2002: 27th European conference on Laser Interaction with Matter, 2002, Moscow, Russian Federation

Abstract

United algorithm LATRANT for a simulation of a radiative gas flows in 2D cylindrical geometry has been developed on the basis of the gas-dynamic code ATLANT and the program for the radiation transport calculation LATRA. The developed program takes into account the radiation transport in the multi-group approximation and the gas dynamics within the framework of the improved Lagrangian method. Two modifications of LATRANT code for spherical and plane problems in r-z geometry respectively have been developed. A quasi-one-dimensional simulation of the heating and compression of a two-layer spherical target irradiated by isotropic X-rays has been carried out to demonstrate qualitative difference between LATRANT and three-temperature approximation results. Essentially 2D simulation of compression of the same target by the angular-nonhomogeneous radiation has revealed fuel preheating and radiative symmetrization of the inner shell compression, which are typical for the indirect compression schemes. Transition of infrared radiation to X-rays has been observed in 2D simulation of plain Al foil acceleration by Nd laser pulse.

Citation Download Citation

Elena N. Aristova, Alexey B. Iskakov, Ivan G. Lebo, and Vladimir F. Tishkin "2D-Lagrangian code LATRANT for simulation radiation gas dynamic problems", Proc. SPIE 5228, ECLIM 2002: 27th European Conference on Laser Interaction with Matter, (12 December 2003); https://doi.org/10.1117/12.536544

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