Several Influential Factors on Numerical Simulated Results for the X-Ray Thermal Shock Waves

Taking account of Compton scattering photons transport behavior or not, using what model to describe melting, vaporization and strain rate effect, how to determine free surface difference schemes, mesh size and time step, all of these factors will generate important effect on numerical simulated result for X-ray shock waves. According to the data calculated by thermal shock wave propagation code, the effect of several factors above mentioned are analyzed in this paper. Our results indicate that, for soft spectrum and large fluency of X-ray source, the equations of state, free surface difference schemes, mesh size and time step will influence significantly on calculated results. When X-ray energy spectrum turns to strong, the Compton scattering can cause more influence. At low stress, the constitutive equations and yield strength will control thermal shock wave attenuation along the material thickness basically.