Simulation of multi-wire liner dynamics during Z-pinch implosion

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