کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6933443 867748 2013 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Operator splitting and time accuracy in Lagrange plus remap solution methods
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Operator splitting and time accuracy in Lagrange plus remap solution methods
چکیده انگلیسی
Operator splitting and time accuracy in Lagrange plus remap solution methods for the hydrodynamics equations are investigated. The time accuracy of the common solution approach is shown, both analytically and numerically, to be limited to first order due to operator splitting errors, low-order time integration of the remap terms, and other postulated first-order errors, even if the Lagrange step is second-order accurate in time. Additional numerical studies are used to demonstrate how these errors can be eliminated with an unsplit treatment that solves the remap terms directly. The Discontinuous Remap Method, in which a new mesh is generated during the remap step, also is shown to be first-order accurate in time.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 253, 15 November 2013, Pages 247-258
نویسندگان
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