Validation of the plasma-wall interaction simulation code ERO2.0 by the analysis of tungsten migration in the open divertor region in the Large Helical Device

Tungsten migration in the open divertor region Large Helical Device is analyzed for validating three-dimensional plasma-wall interaction simulation code ERO2.0. The ERO2.0 reproduced measurement of localized tungsten from a tungsten-coated plate installed inboard side torus. also explained high areal density private on carbon plate, next to by prompt redeposition plasma discharges low magnetic field strength counterclockwise toroidal direction. However, disagreed with plasma-wetted areas plates, which indicated that actual erosion rate redeposited should be much higher than used code.