HIGHER-ORDER BRAGG REFLECTION OF GRAVITY SURFACE-WAVES BY PERIODIC BEDS

被引:124
|
作者
GUAZZELLI, E [1 ]
REY, V [1 ]
BELZONS, M [1 ]
机构
[1] UNIV PROVENCE,CTR ST JEROME,SETT,DEPT PHYS SYST DESORDONNES,CNRS,URA 1168,F-13397 MARSEILLE 13,FRANCE
关键词
D O I
10.1017/S0022112092000478
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
Experiments are described which demonstrate higher-order Bragg resonant interactions between linear gravity waves and doubly sinusoidal beds. These higher-order effects, which include harmonic and subharmonic Bragg reflections, have been observed by making very precise measurements in a wave tank. Subharmonic reflection was found to be very large, even for small bottom undulation amplitudes. The experimental data are compared with the predictions of a numerical model based on the full potential theory of linear waves.
引用
收藏
页码:301 / 317
页数:17
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