12 December 2003 2D-Lagrangian code LATRANT for simulation radiation gas dynamic problems
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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.
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Elena N. Aristova, Elena N. Aristova, Alexey B. Iskakov, Alexey B. Iskakov, Ivan G. Lebo, Ivan G. Lebo, Vladimir F. Tishkin, 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); doi: 10.1117/12.536544; https://doi.org/10.1117/12.536544
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