کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4626886 1631795 2015 25 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A space–time BIE method for 2D wave equation problems with mixed boundary conditions
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
A space–time BIE method for 2D wave equation problems with mixed boundary conditions
چکیده انگلیسی

In this paper we consider the 2D exterior problem for the non homogeneous wave equation, with mixed type boundary conditions and non homogeneous initial conditions, these latter having local supports. First we derive a space–time boundary integral equation formulation to solve the problem. Then we propose a numerical approach for its solution, which couples a Lubich discrete convolution quadrature with a classical collocation method. For the computation of the extra “volume” integrals generated by the initial data, having local supports, we propose a new numerical approach. Finally, we solve some test problems and present some of the numerical results we have obtained.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematics and Computation - Volume 259, 15 May 2015, Pages 1046–1070
نویسندگان
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