Three-dimensional tidal sand waves

被引：7
|
作者：
Blondeaux, Paolo [1 ]
Vittori, Giovanna [1 ]
机构：
[1] Univ Genoa, Dept Civil Environm & Architectural Engn, I-16145 Genoa, Italy
来源：
JOURNAL OF FLUID MECHANICS | 2009年 / 618卷
关键词：
SEA WAVES; STABILITY; RIPPLES;
D O I：
10.1017/S0022112008004138
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The process which leads to the formation of three-dimensional sand waves is investigated by means of a stability analysis which considers the time development of a small-amplitude bottom perturbation of a shallow tidal sea. The weakly nonlinear interaction of a triad of resonant harmonic components of the bottom perturbation is considered. The results show that the investigated resonance mechanism call trigger the formation of a three-dimensional bottom pattern similar to that observed in the field.
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页码：1 / 11
页数：11
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