… Figure 8.43a Manning's n~flow depth for prismatic channel with different floodplain widths
and skewed channel 8-106 Figure 8.43b Friction factor f~flow depth for prismatic channel with …

… the continued desirability of expressing roughness magnitudes in terms of the Nikuradse
value. However extreme the artificiality of the cube as a roughness element actually is, it had …

… bottom slope and sufficient prismatic channel length, the Row in … in steep very rough natural
channels and channels with … It is characterized by greatest hydraulic resistance. With type …

… The purpose was to determine the flow resistance owing to such macrorough banks. The …
created by the roughness elements compared to the prismatic reference channel. The overall …

… rectangular open channel and approaching Froude Number, … in natural watercourses with
moderately steep bottom slopes. … drag of smooth channel and increases resistance to the flow. …

… between the geometrical and hydraulic characteristics of the … roughness, n = 0.0092 m −1/3
s and grain roughness, k s = … surface gradient is increasingly steeper (see supplementary …

… Many steep coarse-bed channels contain boulders … shallow open channels where free-surface
effects are important. … incision as well as channel hydraulics, but quantitative calculations …

… compound channel with a very steep internal wall … other applications of open channel
hydraulics throughout the world. … , afflux at bridges and culverts, roughness, hydraulic resistance …

… channel (ie non-uniform boundary). In this case, much of the hydraulic resistance may be
attributed to surface roughness … It is well established that for a regular prismatic channel under …

… Prismatic: A prismatic channel has both a constant cross-… A drop channel also has a steep
slope but is much shorter … If the boundary roughness is such that the roughness elements are …