کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
500590 863096 2006 25 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Finite element formulation with high-order absorbing boundary conditions for time-dependent waves
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Finite element formulation with high-order absorbing boundary conditions for time-dependent waves
چکیده انگلیسی

The Hagstrom–Warburton high-order absorbing boundary conditions (ABCs) are considered. They are based on a high-order form of the Higdon ABCs using auxiliary variables and constitute a modification of the previously proposed Givoli–Neta ABCs. Here the Hagstrom–Warburton ABCs, which were originally used in a finite difference scheme, are incorporated into a finite element formulation. Exterior time-dependent problems are considered with rectangular computational domains. Special corner conditions are used in conjunction with the ABCs to make the truncated problem well-posed. The properties of the Hagstrom–Warburton and Givoli–Neta formulations are compared, and the relations between the two formulations are established. Numerical examples demonstrate the performance of the Hagstrom–Warburton finite element scheme.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 195, Issues 29–32, 1 June 2006, Pages 3666–3690
نویسندگان
, , ,