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  Modelling of island divertor physics and comparison to W7-AS experimental results

Feng, Y., Sardei, F., Grigull, P., McCormick, K., Giannone, L., Kisslinger, J., et al. (2003). Modelling of island divertor physics and comparison to W7-AS experimental results. Journal of Nuclear Materials, 313-316, 857-862. doi:10.1016/S0022-3115(02)01463-0.

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 Creators:
Feng, Y.1, 2, Author              
Sardei, F.1, Author              
Grigull, P.3, Author              
McCormick, K.2, 4, Author              
Giannone, L.5, Author              
Kisslinger, J.6, Author              
Reiter, D.7, Author
Igitkhanov, Y.8, Author              
Wenzel, U.9, Author              
Affiliations:
1W7-X: Theory, Max Planck Institute for Plasma Physics, Max Planck Society, ou_persistent22              
2W7-AS, Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856310              
3W7-X: Physics (PH), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856305              
4Stellarator Scenario Development (E5), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856285              
5Experimental Plasma Physics 1 (E1), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856295              
6Experimental Plasma Physics 3 (E3), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856291              
7Institut für Plasmaphysik, Forschungszentrum Jülich Gmbh, EURATOM Association, Trilateral Euregio Cluster, D-52425, Jülich, Germany, ou_persistent22              
8Stellarator System Studies, Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856331              
9Plasma Diagnostics Group (HUB), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856324              

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Free keywords: 15th International Conference on Plasma Surface Interactions in Controlled Fusion Devices (PSI 15), Gifu, 2002-05-26 to 2002-05-31
 Abstract: Extensive parameter studies have been carried out with the EMC3-EIRENE code. Major code predictions, namely the absence of high recycling prior to detachment, additional momentum losses associated with the specific island divertor geometry and the jump of the radiation at detachment transition have been verified by the W7-AS divertor experiments. Measurements and simulations are compared for high density, high power W7-AS divertor discharges and the physics related to rollover and detachment is discussed in detail. Local comparisons with the W7-AS experiment have been started with a new code version accounting for the real open-island geometry. Specifically, the observed asymmetric power unloading of the target plates at detachment transition could now be reproduced and explained. Agreement with the experiment was also found for the unexpected spatial structure of particle deposition by including classical E×B drifts into the code.

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Language(s): eng - English
 Dates: 2003
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Degree: -

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Title: Journal of Nuclear Materials
  Alternative Title : J. Nucl. Mater.
Source Genre: Journal
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Publ. Info: Copyright © 2003 Elsevier Science B.V. All rights reserved
Pages: - Volume / Issue: 313-316 Sequence Number: - Start / End Page: 857 - 862 Identifier: -