A Comparative Study of ANSYS AUTODYN and RSPH Simulations of Blast Waves

Abstract — In this study, we compare the overall performance of the academically developed code RSPH with the commercially available software AUTODYN on one- and two-dimensional simulations of blast waves, both in Cartesian and cylindrical coordinates. Interactions with solid boundaries are considered. The former code couples a standard SPH description with unique techniques for reducing the degree of disorder in the particle distribution and varying the smoothing length both in time and space. The latter code comprises several solvers, among which are the Godunov and FCT solvers are both suitable tools for studying shock waves. Our study shows the RSPH code to perform well when compared to the FCT solver and distinctly better when compared to the Godunov solver, both in terms of accuracy and efficiency. I