Abstract
The present paper addresses the problem of multiphase incompressible suspension flows where an interface with a gas phase is explicitly taken into account in a sharp manner. We define the suspension phase as a mixture of a liquid and non-colloidal particles and a level-set method is used to track the position of the interface between the suspension and the gas phase. The presence of particles in the liquid phase is accounted for in an Euler-Euler manner: properties of the suspension vary locally with the particle volume fraction which is accurately resolved with the use of high-order schemes. Since two-phase flows are considered, specific attention is given to the interface region in order to limit spurious forces and mass loss. The overall method turns out to be robust and accurately captures complex suspension flows as illustrated by selected results.
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