کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
513255 | 866461 | 2011 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A meshless Galerkin least-square method for the Helmholtz equation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A meshless Galerkin least-square method for the Helmholtz equation A meshless Galerkin least-square method for the Helmholtz equation](/preview/png/513255.png)
چکیده انگلیسی
The Helmholtz equation always suffers the so-called ‘pollution effect’, which is directly related to the dispersion for high wavenumber. The element-free Galerkin method (EFGM) has been successfully applied to acoustic problems and significantly reduced the dispersion error. Unfortunately, it is computationally expensive. In this paper, a two-dimensional (2-D) dispersion analysis is performed on the meshless Galerkin least-square (MGLS) method. This method is based on the EFGM at the domain boundary and the least-square method in the interior. Numerical examples on an L-shaped cavity demonstrate that while retaining the accuracy of the EFGM, the computational cost can be significantly reduced.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Analysis with Boundary Elements - Volume 35, Issue 6, June 2011, Pages 868–878
Journal: Engineering Analysis with Boundary Elements - Volume 35, Issue 6, June 2011, Pages 868–878
نویسندگان
Zeng He, Peng Li, Gaoyu Zhao, Han Chen,