Four: Mixing in rotating drumWe investigate mixing mechanism in a rotating drum operating in rolling regime. To this end, a drum with the diameter of 0.2 m and depth of 0.03 m is half-filled with 19000 3-mm spherical particles. Rotation speed of the drum is 10 RPM. This rotation speed…
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Three: Conical Hopper
Three: Conical HopperThe flow of spherical particles in a conical hopper with the cone angle 45° is studied. Density and size of particles are 2500 kg/m3 and 9 mm, respectively. Diameter of the hopper is 20 cm and diameter of the exit orifice is 8 cm. A wide, flat wide…
Tutorial Two: Packing of Polydisperse Particles
Tutorial Two: Packing of Polydisperse ParticlesIn tutorial, we create a random packed bed of spherical particles in a cylindrical container with the diameter of 15 cm and height of 20 cm. Particles are a mixture of spherical particles with similar density (2500 kg/m3) and uniform sizes distribution between 3 and…
cemfDEM® tutorial One: Packing of particles
cemfDEM® tutorial One: Packing of particlesPacking of spheres: In this DEM simulation, we create a random packed bed of spheres in a cylindrical container with the diameter of 15 cm and length of 20 cm. To create this bed, 8000 7-mm spherical particles with the density of 2500 kg/m3 are…
reactingFoam: Sandia D flame tutorial
reactingFoam: Sandia D flame tutorialYou will learn how to use reactingFOAM solver to simulate a turbulent combustion of methane in air. The simulation is based on the combustion of methane in the Sandia D flame benchmark. reactingFoam is a transient solver for simulating compressible, laminar/turbulent reactive systems. This solver uses stoichiometry expressions and kinetic data of…
New hybrid CPU-GPU solver for CFD-DEM simulation of fluidized beds
New hybrid CPU-GPU solver for CFD-DEM simulation of fluidized bedsAbstract The algorithm and implementation details of a new parallel CFD-DEM solver that uses both CPU and GPU resources for computations are presented in this study. The new solver supports complex geometries, various shapes of mesh, converges at very high fluid…
Simulation of granular mixing in a static mixer by discrete element method
Simulation of granular mixing in a static mixer by discrete element methodAbstract Mixing of solids in static mixers with different geometries was studied using discrete element method (DEM) simulations. The DEM code was validated by comparing the simulation results with experimental data for a static mixer with 180° Kenics elements.…
Simulation of pellet coating in Wurster coaters
Simulation of pellet coating in Wurster coatersAbstract A combination of computational fluid dynamics (CFD), discrete element method (DEM), and discrete droplet method (DDM), i.e., a CFD-DEM-DDM model, was developed to simulate coating of pellets in a Wurster coater. The model equations were implemented in parallel using an approach that uses…
Mastering twoPhaseEulerFoam, One: Fluidized bed
Mastering twoPhaseEulerFoam, One: Fluidized bedIn this tutorial you will learn how to simulate a gas-solid fluidized bed using OpenFOAM® (twoPhaseEulerFoam). This tutorial is a part of tutorial series “mastering twoPhaseEulerFoam.” Download Now!Published: July 26, 2020