CFD modeling of graphite dust transport, deposition and resuspension with OpenFOAM

In a high temperature pebble-bed reactor, carbonaceous dust is conveyed by the cooling carrier phase and eventually deposits in the primary circuit of the reactor. The numerical dispersion and deposition of Lagrangian aerosol particles in a turbulent flow is here investigated. The flow field is simulated using a Reynolds-averaged Navier-Stokes method. A Langevin equation is implemented to reproduce the turbulent dispersion of particles. Results of the deposition experiments in a vertical and horizontal square duct flow show good agreement with recently published experimental data.