کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
502375 863701 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Moving grids for magnetic reconnection via Newton–Krylov methods
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Moving grids for magnetic reconnection via Newton–Krylov methods
چکیده انگلیسی

This paper presents a set of computationally efficient, adaptive grids for magnetic reconnection phenomenon where the current density can develop large gradients in the reconnection region. Four-field extended MagnetoHydroDynamics (MHD) equations with hyperviscosity terms are transformed so that the curvilinear coordinates replace the Cartesian coordinates as the independent variables, and moving grids' velocities are also considered in this transformed system as a part of interpolating the physical solutions from the old grid to the new grid as time advances. The curvilinear coordinates derived from the current density through the Monge–Kantorovich (MK) optimization approach help to reduce the resolution requirements during the computation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Physics Communications - Volume 182, Issue 1, January 2011, Pages 173–176
نویسندگان
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