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Fluid Simulation of Beryllium Transport in the ITER Gaseous Divertor

✍ Scribed by D. A. Knoll; R. B. Campbell; P. R. McHugh

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
327 KB
Volume
34
Category
Article
ISSN
0005-8025

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✦ Synopsis

Abstract

The transport of either intrinsic or injected impurities will play a crucial role in the energy loss mechanisms in the ITER gaseous/cold plasma target divertor. Both 1‐D and 2‐D multi‐charge state fluid codes are used to model the transport of beryllium in the ITER SOL. Our major conclusion is that in order to model the containment of impurities, the background flow field must be known in detail. Comparing 1‐D and 2‐D solutions, hydrogen flow reversal plays an important role in the entrainment process. Further, the flow of particles from the core plasma also has a strong impact on the resultant entrainment of the impurities in both 1‐D and 2‐D. It is imperative that those components of poloidal velocity due to ExB and diamagnetic drifts be included in the models.

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