Three-Dimensional Simulations of a Shock-Particle Curtain Interaction

The goal of this study is to conduct three-dimensional simulations of interaction between a shock wave and a finite-width curtain of solid particles. Particles are distributed uniformly with volume fractions = 1%, 5%, 10% and are initially stationary. The shock wave propagates at a Mach number 1 = 2.5. To enable a two-way fluid-particle coupling, a point-particle/WENO scheme is implemented into FIESTA, a performance portable compressible flow solver developed at the University of New Mexico. Results are compared to experiments conducted by Theofaneous et al. (2016) in which two key phenomena were observed: a shock reflected from the upstream edge of a particle curtain and the increase over time of the curtain width. Both these phenomena are reproduced with the coupled scheme in FIESTA. Portability of FIESTA is also analyzed by comparing the code computational performance on CPUs and GPUs with demonstrated speedups up to 23×.