Higher-Order Bragg Resonance in Gravity Surface Waves over Periodic Bottoms
XIAO Yu-Meng, TAO Zhi-Yong, WANG Xin-Long
Institute of Acoustics, Nanjing University, Nanjing 210093
Higher-Order Bragg Resonance in Gravity Surface Waves over Periodic Bottoms
XIAO Yu-Meng;TAO Zhi-Yong;WANG Xin-Long
Institute of Acoustics, Nanjing University, Nanjing 210093
关键词 ：
47.15.Hg ,
47.35.+i ,
43.20.Ks
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.
Key words ：
47.15.Hg
47.35.+i
43.20.Ks
出版日期: 2006-07-01
引用本文:
XIAO Yu-Meng;TAO Zhi-Yong;WANG Xin-Long. Higher-Order Bragg Resonance in Gravity Surface Waves over Periodic Bottoms[J]. 中国物理快报, 2006, 23(7): 1846-1849.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2006/V23/I7/1846
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