The presence of submerged plants increased the flow gradient, hence the bedroughness became larger to resist flow.
淹没植物的存在起阻流作用,增大了水流的坡降,使床面糙率变大。
2
On the basis of freeboard phenomenon in curve way and the improvement of curve flow velocity, this paper gets a useful calculating method of bedroughness.
本文基于弯道超高现象以及弯道流速计算的改进,得出了一种较为实用的泥石流沟床糙率计算方法。
3
The bedroughness height was expressed by the corrective height of vegetations, and the non-uniformity roughness was expressed by the variance of the height.