| Higher-Order Bragg Resonance in Gravity Surface Waves over Periodic Bottoms |
| |
| 作者姓名： | 肖雨濛 陶智勇 王新龙 |
| |
| 作者单位： | Institute of Acoustics, Nanjing University, Nanjing 210093 |
| |
| 基金项目： | Supported by the National Science Foundation of China under Grant Nos 19925414 and 10474045, and the Research Fund for the Doctoral Program of Higher Education of China under Grant No 20050284018. |
| |
| 摘 要： |
|
| 关 键 词： | 高阶Bragg谐振 重力表面波 周期底 Bloch定理 |
| 收稿时间： | 2006-03-18 |
| 修稿时间： | 2006-03-18 |
Higher-Order Bragg Resonance in Gravity Surface Waves over Periodic Bottoms |
| |
| XIAO Yu-Meng, TAO Zhi-Yong, WANG Xin-Long.Higher-Order Bragg Resonance in Gravity Surface Waves over Periodic Bottoms[J].Chinese Physics Letters,2006,23(7):1846-1849. |
| |
| Authors: | XIAO Yu-Meng TAO Zhi-Yong WANG Xin-Long |
| |
| Abstract: | A calculation method based on the Bloch theorem is developed for the gravity surface waves over the periodic bottoms of large undulations. The study shows the existence of comparable high-order bandgaps, which are demonstrated to result from the higher-order Bragg resonances, i.e. the resonant interactions between surface waves and the harmonic components of the fluctuating bottom. It is also shown that the band widths of the high-order gaps are quite sensitive to the amplitudes of high-order harmonics of the bottom. |
| |
| Keywords: | |
| 本文献已被 维普 等数据库收录！ |
