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-/spl phi/ 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.