Exact solutions of a variable-coefficient KdV equation arising in a shallow water

被引:8
|
作者
Dai, HH [1 ]
机构
[1] City Univ Hong Kong, Dept Math, Tat Chee Ave, Kowloon, Peoples R China
关键词
variable-coefficient KdV equation; shallow-water waves; cylindrical KdV equation;
D O I
10.1143/JPSJ.68.1854
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
This paper studies a variable-coefficient KdV (vcKdV) equation arising in a shallow water. For a practically acceptable water bottom, we find that it can be transformed into the cylindrical KdV equation. As a result, several exact bounded solutions are obtained. One of the solutions has the shape of a solitary wave with a shelf behind! which confirms approximate analytical and numerical results in the literature.
引用
收藏
页码:1854 / 1858
页数:5
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