CFD Modeling for Slurry Flow Through Bends and Straight Pipe Line

Abstract

In slurry pipeline, bends are important integral part and these are also prone to wear rapidly. The basic knowledge of the slurry flow through pipe and bends accomplish us to find the causes of wear in pipeline. In this study, computational fluid dynamics (CFD) calculations by using Eulerian–Eulerian model is employed to simulate the slurry flow in pipeline. Standard k-epsilon model is used to find turbulence in both liquid and solid phases. Volumetric concentrations of silica sand slurry were taken 3.9 % of 448 μm mono size silica sand particles. The flow velocity was 1.8 and 2.7 m/s, in the pipe line. The CFD results have been validated against experimental data for pressure drop and concentration distribution. It is observed that CFD modeling gives fairly good results for almost all the data considered in this study. The finding of the present study that pressure drop increases with flow velocity around bend and pressure values be maximum at outer surface and minimum at the inner surface across the pipe bend.