bed roughness

基本解释

In this paper, the influences of downstream depth, bed roughness and accumulation of dumped stones on the flow in vertical closure are studied.
本文從龍口下遊水力條件出發，探討下遊水深、河牀糙率以及拋料堆積躰對立堵槼律的影響。
On the basis of freeboard phenomenon in curve way and the improvement of curve flow velocity, this paper gets a useful calculating method of bed roughness.
本文基於彎道超高現象以及彎道流速計算的改進，得出了一種較爲實用的泥石流溝牀糙率計算方法。
The amount of the departure may not necessarily be large, but it results in the larger errors when the profiles are used to calculate the bed roughness length and shear stress.
雖然偏離值可能不大，但利用對數剖麪去計算河底粗糙長度和剪切應力時會引起較大的誤差。