Speaker
Description
When modelling the behaviour of current and future tokamaks, the core plasma is often treated separately from the edge/SOL, with different classes of codes used, with weak on non-existent coupling between the models. This work covers efforts to ensure consistency between the modelling of these separate regions by coupling a code suite describing the core plasma (ETS-PAF, a 1.5D core transport code including heating sources and transport models) with another code suite describing the edge plasma (SOLPS-ITER, a 2D plasma / 3D neutrals transport code modelling the behaviour of the edge and divertor plasma).
This work builds on earlier work coupling older version of the two codes (ETS6 and SOLPS5.0) which was paused because the underlying coupling infrastructure was replaced, and significant development of a wide grid version of SOLPS_ITER was planned.
The coupling relies on one of the pair of value and flux being calculated by the core code and then passed to the edge code as a boundary condition for the edge equations, one or more time-steps of the edge code being performed, and then the other member of the pair being passed from the edge code to the core code and then used as the boundary condition for the core equations where one or more time-steps would be performed.
Initial results of the coupling will be presented, discussing continuity of profiles as well as particle and energy conservation across the coupling surface.