ripple bed

Disturbances with various patterns were exerted to the open channel flow in a flume to quantitatively investigate the variation of turbulence structure during sand ripple formation and its influence on sand movement and river bed evolution.

本文通过在水槽实验中采集的流速过程数据，定量地研究了沙纹阶段明渠水流在不同形式扰动作用下的湍流结构，以及湍流结构对泥沙运动和床面演化的影响。

This paper presents the analysis and calculation of wave attenuations when waves travel on sand bed, sand ripple bed and muddy bed, respectively.

本文分别分析与计算了波浪在粉沙质海床、沙纹海床和淤泥质海床上传播时波高的衰减。

Experimental investigation on the bottom shear stress of the sand ripple bed under wave action

波浪作用下沙纹床面上底部剪应力的实验研究

The roughness of the bed varies from 0.013 to 0.021, gradually increasing as the sand ripple's development.

床面糙率值为0.013~0.021，并随着沙波发育逐步增大。