The effect of roughness configuration on velocity profiles in an artificial channel

Auteurs :
WOHL, E.E.
IKEDA, H.

Description :
In order to determine the effect of bed roughness on velocity distribution, the AA. used 7 different configurations of bed roughness, with 16 test runs of varying discharge and slope for each configuration. Results indicate that velocity profile shape remains fairly constant for a given slope and roughness configuration as discharge increases. As slope increases, the profiles become less linear. Rates of velocity increase suggest that roughness elements spaced at a length/height ratio of about 9 are most effective at creating flow resistance over a range of discharges in channels with steeper slopes.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 1998, vol. 23, n°. 2, p. 159-169, Collation : Illustration, Références bibliographiques : 13 ref.

Date :
1998

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley