This title appears in the Scientific Report :
2011
Please use the identifier:
http://dx.doi.org/10.1088/0029-5515/51/8/083035 in citations.
Transport of neutral particles in turbulent scrape-off layer plasmas
Transport of neutral particles in turbulent scrape-off layer plasmas
The effect of turbulence on the transport of neutral species (atom, molecules) in plasmas is investigated. A stochastic model relying on a multivariate gamma distribution is introduced to describe turbulent fluctuations, and implemented in EIRENE. The effects of fluctuations on the neutral density a...
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Personal Name(s): | Marandet, Y. |
---|---|
Mekkaoui, A. / Reiter, D. / Boerner, P. / Genesio, P. / Catoire, F. / Rosato, J. / Capes, H. / Godbert-Mouret, L. / Koubiti, M. / Stamm, R. | |
Contributing Institute: |
Plasmaphysik; IEK-4 |
Published in: | Nuclear fusion, 51 (2011) S. 083035 |
Imprint: |
Vienna
IAEA
2011
|
Physical Description: |
083035 |
DOI: |
10.1088/0029-5515/51/8/083035 |
Document Type: |
Journal Article |
Research Program: |
Fusion |
Series Title: |
Nuclear Fusion
51 |
Subject (ZB): | |
Publikationsportal JuSER |
The effect of turbulence on the transport of neutral species (atom, molecules) in plasmas is investigated. A stochastic model relying on a multivariate gamma distribution is introduced to describe turbulent fluctuations, and implemented in EIRENE. The effects of fluctuations on the neutral density and ionization source radial profiles are investigated. The role of temperature fluctuations is discussed in detail. Calculations with ITER scrape-off layer parameters are presented, and two distinct regimes with respect to the effects of temperature fluctuations are identified, depending on the far SOL mean temperature. Finally, the influence of fluctuations on impurity contamination is discussed. |