کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1569167 1514257 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
OEDGE modeling of the DIII-D H-mode 13CH4 puffing experiment
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
OEDGE modeling of the DIII-D H-mode 13CH4 puffing experiment
چکیده انگلیسی

Use of carbon in tokamaks leads to a serious tritium retention issue due to co-deposition. To further investigate the processes involved, a detached ELMy H-mode (6.5 MW NBI) experiment was performed on DIII-D in which 13CH4 was puffed into the main vessel through the toroidaly symmetric pumping plenum at the top of lower single-null discharges. Subsequently, the 13C content of tiles taken from the vessel wall was measured. The interpretive OEDGE code was used to model the results. The 13C deposition pattern could be reproduced, in general shape and magnitude, by assuming in the code the existence of a parallel flow and a radial pinch in the scrape-off layer. Parallel flows of Mach ∼0.3 toward the inner divertor and a radial pinch ∼10–20 m/s (+R-direction) were found to yield 13C deposition comparable to the experiment.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volumes 363–365, 15 June 2007, Pages 140–145
نویسندگان
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