Edge plasma turbulence simulations in detached regimes with the SOLEDGE3X code

Edge plasma turbulence simulations in detached regimes with the SOLEDGE3X code

Blog Article

Experimental results from several tokamaks suggest a strong impact of divertor density regimes click here on turbulent transport in the edge plasma.Reciprocally, the change in cross- field transport and Scrape-Off-Layer (SOL) width affects the access to density regimes, making it a fundamental topic for heat exhaust issue.Addressing this issue self- consistently requires numerical modeling tools including, both, turbulent transport and neutrals recycling physics.

In this study, the SOLEDGE3X multi-fluid edge plasma code is used to conduct a first analysis of turbulent transport in a long-leg diverted plasma in high density regimes.A fluid neutrals model is used to model particle recycling as well as fueling by gas puff.A dedicated pulse run in bushranger awning the TCV tokamak is modeled in which a density scan from attached to detached plasma conditions was performed.

The following results demonstrate the achievement of a turbulence simulation in the detached regime, explicitly highlighting a change in turbulence properties between low and high density, which are responsible of a change in the SOL widths.