A theoretical model for estimating hypervelocity impact generated plasma (HVIGP) considering phase transitions

Abstract

Simulation of hypervelocity dust impact generated plasma has been based on experimental fitting, ignoring the impact behavior process, resulting in a disadvantage using at velocity beyond fitting range. Aming on improve simulation model of the impact plasma generation, this article establishes a forward simulation paradigm from the theory of impact behavior to plasma diffusion. By using the higher-order wave velocity and material velocity relationship, as well as the phase transition equation of state, the research model establish a fine simulation extend impact condition upto 1000 GPa, and achieves a consistent description of the impact behavior to the impact ionization process. The model demonstrates a promising correspondence with experimental results, as in close proximity to the magnitude and comparable exponential growth patterns.