2008 Volume 52 Pages 1249-1254
Numerical simulations of uniform or mixture sized particle thermals on horizontal bed were performed using 3D numerical model. The thermal consists of fine and coarse sized particles and water. The numerical model is constructed with Simplified Marker and Cell (SMAC) method, Monotone Upstream-centered Schemes for Conservation Laws (MUSCL) technique, Smagorinsky turbulence model and treatment of several diameter sizes of a particle. The simulated results are compared with experimental data of maximum height, propagation speed and amount of particles deposition of particle thermal. It is found that this model can reproduce behavior of mixture sized particle thermals on horizontal bed.
