arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1005.2668math.NAcs.NA
收藏

应用于无网格类方法的不规则区域二维自适应节点技术

A two dimensional adaptive nodes technique in irregular regions applied to meshless-type methods

Department of Mathematics(数学系);University of Kurdistan(库尔德斯坦大学)

Kamal Shanazari, Mohammad Hosami

AI总结:

提出一种基于等分布原理和降维技术的不规则区域二维自适应节点生成方法,通过矩形区域自适应节点生成并映射到物理域,结合径向基函数配点无网格法验证有效性。

摘要:

我们提出了一种适用于不规则区域的二维自适应节点技术。该方法基于等分布原理和降维技术。网格生成首先在矩形区域内沿坐标轴基于等分布生成一些自适应节点,然后将生成的节点变换到物理域。由于生成的网格应用于无网格类方法,点的连接性不被使用,只有网格点重要,尽管网格线在自适应过程中被利用。通过考虑一种基于径向基函数插值的配点无网格方法,检验了自适应点的性能。使用具有足够光滑性的广义薄板样条作为基函数,并在等分布过程中采用弧长作为监控函数。将给出一些实验结果以说明所提出方法的有效性。

英文摘要:

We propose a two dimensional (2D) adaptive nodes technique for irregular regions. The method is based on equi-distribution principal and dimension reduction. The mesh generation is carried out by first producing some adaptive nodes in a rectangle based on equi-distribution along the coordinate axes and then transforming the generated nodes to the physical domain. Since the produced mesh is applied to the meshless-type methods, the connectivity of the points is not used and only the grid points are important, though the grid lines are utilized in the adapting process. The performance of the adaptive points is examined by considering a collocation meshless method which is based on interpolation in terms of a set of radial basis functions. A generalized thin plate spline with sufficient smoothness is used as a basis function and the arc-length is employed as a monitor in the equi-distribution process. Some experimental results will be presented to illustrate the effectiveness of the proposed method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑