Partic. vol. 21 pp. 173-178 (August 2015)
doi: 10.1016/j.partic.2014.08.012

Smoothed particle hydrodynamics for coarse-grained modeling of rapid granular flow

Lijuan Deng^a,*, Wei Wang^b

butter_fly01@sina.cn

Abstract

We simulated rapid flow in transient plane Couette flows of granular particles using the smoothed particle hydrodynamics (SPH) solutions of a set of continuum equations. This simulation was performed to test the viability of SPH in solving the equations for the solid phase of the two-fluid model associated with fluidization. We found that SPH requires the handling of fewer particles in simulating the collective behavior of rapid granular flow, thereby bolstering expectations of solving the equations for the solid phase in the two-fluid modeling of fluidization. Further work is needed to investigate the effect of terms describing pressure and viscous stress of solids on stability in simulations.

Graphical abstract

Keywords

Smoothed particle hydrodynamics (SPH); Rapid granular flow; Continuum model; Two-fluid model; Elastic modulus; Transient plane Couette flow