Modelling of Divertor Plasma Transport in Stochastic Magnetic Boundary
- National Institute for Fusion Science, Oroshi-cho 322-6, Toki city 509-5292 (Japan)
Impacts of stochastic magnetic field structure on divertor functions are discussed based on analyses with the three dimensional (3D) edge transport code package EMC3-EIRENE with Braginskii type fluid equations, in the Large Helical Device (LHD), in comparison with the experimental data. It is shown that the three dimensional field line topology introduced by the stochasticity provides controllability of the edge plasma transport such as divertor regime, impurity transport. The observations in other devices with stochastic magnetic boundary regarding these issues are discussed as well. Also presented are the traditional formulation of the magnetic field and the transport in the stochastic layer based on diffusive picture, which are contrasted with the 3D treatment of the flux tube topology and of the transport.
- OSTI ID:
- 21362062
- Journal Information:
- AIP Conference Proceedings, Vol. 1237, Issue 1; Conference: 3. ITER international summer school, Aix-en-Provence (France), 22-26 Jun 2009; Other Information: DOI: 10.1063/1.3447989; (c) 2010 American Institute of Physics; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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