The 3D Simulation of Dust Particle Transport

Recently, the presence of dust particles in tokamak plasma and the role of dust in material re-deposition, core contamination, and tritium inventory brought significant attention of the fusion community. The physical model for dust transport in fusion devices and the newly developed 3D code DUSTT are discussed. The DUSTT code takes into account both the dust dynamics due to dust-plasma interactions as well as the effects of dust charging, heating and evaporation. The code allows tracking of test dust particle in realistic plasma background calculated with edge-plasma transport code UEDGE. Some results on dust transport in DIII-D tokamak are presented.