| Autor: |
N. Richard, M. Simard, J.-L. Lachambre, G. Abel, Barry L. Stansfield, Richard Marchand, F. Meo, TdeV Team, E. Haddad, D. Pinsonneault |
| Rok vydání: |
1999 |
| Předmět: |
|
| Zdroj: |
Journal of Nuclear Materials. :1129-1133 |
| ISSN: |
0022-3115 |
| DOI: |
10.1016/s0022-3115(98)00877-0 |
| Popis: |
Particle and energy transport are modelled in TdeV using the multispecies finite element simulation code TOPO. For every charged species, equations are solved for the conservation of particles, parallel momentum, and energy. For neutral species, equations are solved for the conservation of particles and energy. For simplicity, all neutral fluxes are assumed to be diffusive. The transport equations are discretised with finite elements on a triangular unstructured mesh. This allows a realistic description of the TdeV divertor geometry, with segmented divertor plates arbitrarily oriented with respect to the local flux surfaces. The use of an unstructured mesh also allows local mesh refinement in the vicinity of the X point, and at selected locations near the divertor plates. Comparisons between simulated and experimentally measured density profiles are presented. Detailed comparisons between calculated and measured D α specific intensities are also presented. Finally, an assessment is made of the single ion temperature approximation commonly made in other edge transport models. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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