Hall and two-temperature magnetohydrodynamic simulation of deuterium-fiber-initiated Z pinches

Abstract

Two-dimensional “cold-start” resistive magnetohydrodynamic computations of formation and evolution of deuterium-fiber-initiated Z pinches have been extended to include separate ion and electron energy equations and some finite-Larmor-radius ordered terms. In the Ohm’s law (magnetic field evolution) equation, Hall and diamagnetic pressure terms have been added, and corresponding terms have been added to the energy equation. None of the extended model computations show stabilizing effects for fiber-initiated Z pinches; in fact, further slight destabilization is noted. This continues the good agreement shown between previous computational results and experiment.