一类高阶KdV类型水波方程的多辛Preissmann格式
发布时间:2018-05-30 09:21
本文选题:Hamiton系统 + Preissmann格式 ; 参考:《西北师范大学学报(自然科学版)》2017年01期
【摘要】:高阶KdV类型水波方程作为一类重要的非线性方程有着广泛的应用前景.基于Hamilton空间系的多辛理论研究了一类高阶KdV类型水波方程的数值解法,利用Preissmann方法构造了离散半隐式的多辛格式,该格式满足多辛守恒律.数值算例表明该多辛离散格式具有较好的长时间数值稳定性.
[Abstract]:As an important class of nonlinear equations, high order KdV type water wave equations have a wide application prospect. Based on the multi-symplectic theory of Hamilton space system, the numerical solution of a class of high-order KdV type water wave equations is studied. A discrete semi-implicit multi-symplectic scheme is constructed by using the Preissmann method, which satisfies the multi-symplectic conservation law. Numerical examples show that the multi-symplectic discrete scheme has good numerical stability for a long time.
【作者单位】: 普洱学院数学系;西北大学数学系;
【基金】:云南省教育厅项目(2015Y490) 普洱学院创新团队资助项目(CXTD003)
【分类号】:O241.82
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本文编号:1954765
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