کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4967793 1449383 2017 24 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A symmetric Trefftz-DG formulation based on a local boundary element method for the solution of the Helmholtz equation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
A symmetric Trefftz-DG formulation based on a local boundary element method for the solution of the Helmholtz equation
چکیده انگلیسی
A general symmetric Trefftz Discontinuous Galerkin method is built for solving the Helmholtz equation with piecewise constant coefficients. The construction of the corresponding local solutions to the Helmholtz equation is based on a boundary element method. A series of numerical experiments displays an excellent stability of the method relatively to the penalty parameters, and more importantly its outstanding ability to reduce the instabilities known as the “pollution effect” in the literature on numerical simulations of long-range wave propagation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 330, 1 February 2017, Pages 1069-1092
نویسندگان
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