A direct discontinuous Galerkin method for the generalized Korteweg-de Vries equation: Energy conservation and boundary effect
A direct discontinuous Galerkin method for the generalized Korteweg-de Vries equation: Energy conservation and boundary effect
复制标题
广义 Korteweg-de Vries 方程的直接间断 Galerkin 方法:能量守恒和边界效应
DOI:
10.1016/j.jcp.2013.01.031
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发表时间:
2013-06
影响因子:
4.1
通讯作者:
Liu, Hailiang
中科院分区:
文献类型:
--
作者:
Yi, Nianyu;Huang, Yunqing;Liu, Hailiang
A direct discontinuous Galerkin method for solving the generalized Korteweg–de Vries (KdV) equation with both periodic data and non-homogeneous boundary data is developed. A class of numerical fluxes is identified so that the method preserves both momentum and energy for the initial value problem. The method with such a property is numerically shown robust with less error in both phase and amplitude after long time simulation. Numerical examples are given to confirm the theoretical result and the capacity of this method for capturing soliton wave phenomena and various boundary wave patterns.
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