Abstract
The edge and scrape-off layer (SOL) plasma of the inter-ELM phase of an H-mode discharge from the TCV tokamak is modeled with the transport code SolEdge2D-EIRENE (Bufferand et al. Nuclear Fusion 55 (2015)). The numerical simulations, in presence and in absence of C impurities sputtered from the first wall, are presented and compared with the experiments, finding an overall good agreement. The application of the standard two-point model to the simulation results leads to an apparent momentum gain along the divertor leg. A two-fluid two-point model featuring thermally decoupled ions and electrons is introduced and applied to the simulation results, overcoming this apparent discrepancy.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 29-34 |
| Number of pages | 6 |
| Journal | Nuclear Materials and Energy |
| Volume | 18 |
| DOIs | |
| State | Published - Jan 2019 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Materials Science (miscellaneous)
- Nuclear Energy and Engineering
Keywords
- Plasma
- Scrape-off layer
- Simulations
- TCV
- Transport
- Two-point model