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总览 评价 于文莉 , 陈传军 * ( 烟台大学数学与信息科学院,烟台 265200; ) 摘要: 本文针对KDV方程提出了一类有限体积方法,空间上基于均匀网格采用二次B样条有限体积近似,时间上结合Crank-Nicolson离散格式和二次外插公式,格式保证了动量的局部守恒,
于文莉, 陈传军*
(
烟台大学数学与信息科学院,烟台 265200; )
摘要:
本文针对KDV方程提出了一类有限体积方法,空间上基于均匀网格采用二次B样条有限体积近似,时间上结合Crank-Nicolson离散格式和二次外插公式,格式保证了动量的局部守恒,并且具有较高的计算效率和收敛精度。本文最后给出了一些典型算例。?????
关键词:
有限体积;KDV方程;B样条;Crank-Nicolson?????
YU Wenli, CHEN Chuanjun*
(
School of Mathematics and Information Science, Yantai University,Yantai 264005; )
Abstract:
This paper develops a kind of finite volume method for the KDV equation. The space discretization is based on quadratic B-spline finite elements on a non-uniform meshes, while the temporal discretization is combined with the Crank-Nicolson scheme and an extra-interpolation. Our finite volume scheme ensures the local conservation of momentum, and also possesses high efficiency and accuracy. Some benchmark examples are tested.?????
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