کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9668160 | 865957 | 2005 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
New approximations and collocation schemes in the finite cloud method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The finite cloud method (FCM) [Int. J. Numer. Methods in Eng. 50(10) (2001) 2373] is a meshless technique combining a fixed kernel approximation of the unknown function(s) with a point collocation discretization of the governing PDEs. The meshless approximation and the collocation discretization are the two major steps in FCM. Since the quality of the numerical solution depends on the quality of the meshless approximation functions or shape functions and the discretization scheme employed, in this paper, we propose several improvements to the construction of meshless shape functions and compare several collocation schemes within the framework of the FCM. The improvements to the shape functions are combined with various collocation schemes to solve several 2-D Poisson and elastostatic examples. The convergence characteristics of the collocation schemes are studied. The accuracy of the collocation schemes with a scattered point distribution is also investigated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 83, Issues 17â18, June 2005, Pages 1366-1385
Journal: Computers & Structures - Volume 83, Issues 17â18, June 2005, Pages 1366-1385
نویسندگان
Xiaozhong Jin, Gang Li, N.R. Aluru,