Title :
Simulation of multi-wire liner dynamics during Z-pinch implosion
Author :
Semushin, S. ; Etlicher, B.
Author_Institution :
Lab. de Phys. des Milieux Ionises, Ecole Polytech., Palaiseau, France
Abstract :
The physics of multi-wire liner compression is analysed by two dimensional simulations in r-z plane and in r-φ plane. Sandia experiments with multi-wire liners provide encouraging experimental results. But threshold effects of the number of wires has not been entirely explained. This complex three-dimensional problem nevertheless can be investigated by means the two dimensional simulations in two orthogonal planes. The simulations were done with original adaptive mesh refinement algorithm, using a two temperature plasma model with and without radiation effects. Different models were used for equations of state and transport coefficients. Three dimensional simulations are expensive, and they can´t be realised with rather full physical model. So, firstly, the stability of tungsten double liner was analysed in assumption of cylindrical symmetry. Than some features of multi-wire dynamics are analysed from simulations in Z-pinch cross section
Keywords :
Z pinch; plasma simulation; plasma transport processes; Z-pinch implosion; adaptive mesh refinement algorithm; equations of state; multi-wire dynamics; multi-wire liner compression; multi-wire liner dynamics; radiation effects; threshold effects; transport coefficients; two temperature plasma model; Adaptive mesh refinement; Analytical models; Differential equations; Physics; Plasma simulation; Plasma stability; Plasma temperature; Plasma transport processes; Radiation effects; Wires;
Conference_Titel :
High-Power Particle Beams, 1998. BEAMS '98. Proceedings of the 12th International Conference on
Conference_Location :
Haifa
Print_ISBN :
0-7803-4287-9
DOI :
10.1109/BEAMS.1998.816939