کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1727099 1520773 2008 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Removing irregular frequencies by a partial discontinuous higher order boundary element method
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی دریا (اقیانوس)
پیش نمایش صفحه اول مقاله
Removing irregular frequencies by a partial discontinuous higher order boundary element method
چکیده انگلیسی

The phenomenon of irregular frequencies is a puzzle in the course of calculating the interaction of waves and structures by the boundary element method. To remove the irregular frequencies, the modified integral domain method is adopted, and continuous higher order elements and partial discontinuous higher order elements are used for discretization. By these means, the effects of the irregular frequencies are effectively removed. Effective strategies have been adopted to deal with singular integrals and nearly singular integrals at different situations. The numerical results of the horizontal wave force on a uniform cylinder in the first order and second order diffraction problems show that the present method has a good validity. At the same time, the influence of collocation parameter on accuracy of numerical results is examined in detail.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ocean Engineering - Volume 35, Issues 8–9, June 2008, Pages 920–930
نویسندگان
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