کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5475081 | 1521087 | 2017 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Accurate reflective boundary condition in the PN method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Accurate implementation of reflective Boundary Condition (B.C.) in the PN method for both forward and adjoint analysis in one, two and three dimensional geometries is investigated in detail. Slab, spherical and cylindrical geometries are covered for 1D space, while a comprehensive procedure for general 3D Cartesian geometry is explained which encapsulates 2D (XY) geometry as a special case. It is shown that the reflective B.C. in the PN method ends to a series of moment couplings on the mirror surface which should be treated as an essential B.C. While these constraints are derived for the conventional PN method, they are applicable for the even parity PN approach, as well. Necessary guideline for imposing reflective constraints on the final system of linear equations in eigenvalue search or fixed source problems is also described. We finally verify the proposed approach by several test cases at the end.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Nuclear Energy - Volume 109, November 2017, Pages 583-599
Journal: Annals of Nuclear Energy - Volume 109, November 2017, Pages 583-599
نویسندگان
Mostafa Yousefi, A. Zolfaghari, A. Minuchehr, M.R. Abbassi,