Benchmark Simulations of Dense Suspensions Flow Using Computational Fluid Dynamics

The modeling of fresh concrete flow is still very challenging. Nevertheless, it highest relevance to simulate these industrially important materials with sufficient accuracy. Often, assumed show a Bingham-behavior. In numerical simulations, regularization must be used prevent singularities. Two different models, namely the 1) Bi-viscous, and 2) Bingham-Papanastasiou are investigated. Those models can applied complex flows common simulation methods, such as Finite Volume Method (FVM), Element (FEM) Smoothed Particle Hydrodynamics (SPH). Within scope this investigation, two software packages from field FVM, Ansys Fluent OpenFOAM, COMSOL Multiphysics (COMSOL) FEM side, HOOMD-blue.sph SPH model reference experiment evaluate quality. According results, good agreement data respect velocity profiles for all achieved, but on other side there remarkable difficulties in viscosity calculation especially shear- plug-flow transition zone. Also, minor influence profile observed.