کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9793825 1514281 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
DIVIMP modeling of impurity flows and screening in Alcator C-Mod
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
DIVIMP modeling of impurity flows and screening in Alcator C-Mod
چکیده انگلیسی
We report on impurity transport modeling using the DIVIMP code which is able to qualitatively reproduce the poloidal variation of non-recycling impurity penetration factor (PFNR) found in C-Mod experiments: a lower PFNR is computed at the inboard (3.6%) and divertor target locations (0.7%) than at the outboard (11%). By artificially increasing the modeled inner SOL plasma flow to correspond to measured values, a better quantitative agreement between modeled and measured PFs is achieved. We have also roughly reproduced the observed penetration factor for recycling impurities both in time dependence and magnitude. The model has shown that under attached conditions, the majority of recycling impurity ions flow into the confined plasma through the outboard side separatrix. For detached conditions the impurity influx across the separatrix is more concentrated near the divertor.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volumes 337–339, 1 March 2005, Pages 109-113
نویسندگان
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