Numerical investigation of particle size segregation in saturated granular flows using CFD-DEM coupling approach

Kahlil F. E. Cui & Gordon G. D. Zhou
Particle size segregation is a common feature in debris-flow deposits and is assumed to develop in a similar way as in dry granular flows where fluid forces are neglected. Solid-fluid coupling however is a defining feature of debris flows and fluid forces must therefore be accounted for in modelling for the segregation that develops therein. This paper presents a numerical investigation of the mechanisms of segregation under the influence of fluid forces. For this, a...
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