Fluidized bed (RANS)
Case directory
$FOAM_TUTORIALS/multiphase/twoPhaseEulerFoam/RAS/fluidisedBed
Summary
We calculate the air flow blowing in from the bottom of air-mixed sand for 2 seconds. The calculation is performed as a two-dimensional problem with one mesh in the z-direction.
Model geometry
The physical properties of air and particles are set in the files "constant/phaseProperties", "constant/thermophysicalProperties.air", "constant/thermophysicalProperties.particles".
The turbulence settings for air and particles are set in the files "constant/turbulenceProperties.air" and "constant/turbulenceProperties.particles". The standard k-ε model is used for air, and the kinetic model by B.G.M. van Wachem is used for particles.
The meshes are as follows, and the number of mesh is 6000.
Meshes
Meshes (zoomed)
The calculation result is as follows.
Volume ratio of particles at initial time (alpha.particles)
Volume ratio of particles at 0.6 sec (alpha.particles)
Volume ratio of particles at 1 sec (alpha.particles)
Commands
cd fluidisedBed
blockMesh
setFields
twoPhaseEulerFoam
paraFoam
Calculation time
20 minutes 59.43 seconds *Single, Inter(R) Core(TM) i7-2600 CPU @ 3.40GHz 3.40GHz