Role of wire diameter size in the high voltage pulse wire explosion: Insights from molecular dynamics simulations

We performed molecular dynamics simulations of the high voltage pulse explosion single aluminum wires with energy ratio 0.6 in vacuum and studied role wire radial dimension. Simulation results show that large-diameter having a large material depth small specific surface can maintain higher deposition density effectively reduce influence difference thermodynamic parameters, leading to velocity lower vaporization rate wire. The most significant effect is larger diameter has longer development time. In addition, propagation reflection rarefaction waves result two regimes: spinodal decomposition propagating inward from cavitation boiling center surface. Increasing will increase domination range mechanism.