利用速度剖面公式计算的垂线平均流速场与实测值符合较好。
The dimensionless velocity-profile formula fits not only the depth average velocity profile but also velocity profile of each layer along depth.
根据弯道水流纵向运动方程，提出了弯道水流纵向垂线平均流速计算公式。
According to the longitudinal equation of flow movement in channel bends, the theoretical formula of depth-averaged longitudinal velocity distrbution is established.
文中还利用量纲分析，导出了挖槽中心垂线平均流速折减系数的经验公式。
An empirical formula of depth-averaged velocity is derived by means of dimensional analysis, and at the same time the characteristics of the variation of bottom current velocity are described.
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