Generation mechanism of bed wave in a sand-bed channel

被引：0
|
作者：
A. G. Petrov
I. I. Potapov
机构：
[1] Institute of Applied Mechanics,Computing Center, Far East Division
[2] Russian Academy of Sciences,undefined
来源：
Journal of Applied Mechanics and Technical Physics | 2011年 / 52卷
关键词：
bed processes; bed load motion; active bed layer; bed waves; channel stability;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The previously proposed theory of bed load motion by fluid flow is developed. A plane system of equations for bed perturbations is obtained using a formula for the sediment transport rate which takes into account the effect of free-surface perturbations on sediment transport and is extended to the two-dimensional case. Dependences of the lengths and velocities of longitudinal and transverse waves with the most rapidly increasing amplitude on Froude number are determined. The effect of macroturbulent viscosity and surface waves on the generation of bed waves is determined.
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页码：224 / 233
页数：9
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