Abstract
In this paper, particle-resolved inviscid simulations of shock propagation over randomly distributed beds are performed, with the goal of quantifying the force on individual particles. An important observation was that the inviscid drag force on some particles remained consistently positive, while others consistently negative, even long after the passage of the shock. These persistent forces are inviscid quasi-steady contributions which, with the viscous counterpart, will play an essential role in the particle's long-term dispersion if allowed to move in response to the force.
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