Abstract
Pipeline slurry flow of mono-dispersed particles through horizontal bend is numerically simulated by implementing Eulerian two-phase model in FLUENT software. A hexagonal shape and Cooper type non-uniform three-dimensional grid is chosen to discretize the entire computational domain, and a control volume finite difference method is used to solve the governing equations. The modeling results are compared with the experimental data collected in 53.0mm diameter horizontal bend with radius of 148.4mm for concentration profiles and pressure drops. Experiments are performed on narrow-sized silica sand with mean diameter of 450μm and for flow velocity up to 3.56m/s (namely, 1.78, 2.67 and 3.56m/s) and four efflux concentrations up to 16.28% (namely, 0%, 3.94%, 8.82% and 16.28%) by volume for each velocity. Eulerian model gives fairly accurate predictions for both the pressure drop and concentration profiles at all efflux concentrations and flow velocities.
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