کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
271984 505009 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A coupled EDDY/PIC/ELECTRAN simulation of erosion and deposition in gaps
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
A coupled EDDY/PIC/ELECTRAN simulation of erosion and deposition in gaps
چکیده انگلیسی

To calculate complex plasma profiles in the gaps, the ELECTRAN code, which calculates secondary electron (SE) emission from metals, was combined with a two-dimensional kinetic code using the particle-in-cell (PIC) technique. We also performed a simulation of carbon/hydrocarbon deposition and re-erosion in the gaps on the condition that the plasma density and temperature were 1018 m−3 and 30 eV, respectively. A high flux of plasma ions occurred at the plasma-open side of the poloidal gap and at the E × B drift side of the toroidal gap. Although most of the carbon was redeposited at the side surface near the gap entrance, the redeposited carbon was re-eroded there due to plasma ion bombardment. As a result, erosion dominated at the plasma-open area near the gap entrance, whereas deposition dominated in deep regions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fusion Engineering and Design - Volume 85, Issues 7–9, December 2010, Pages 1416–1420
نویسندگان
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