Dissipative analogies between a schematic macro-roughness arrangement and step-pool morphology

Multi-scale characterization and evolution of channel forms in gravel-bed rivers

Auteurs :
CANOVARO, F.
SOLARI, L.
RINALDI, M.

Description :
The AA. investigate flow resistance developed by macro-roughness represented by pebbles positioned on a granular layer according to a regularly spaced stripe pattern on steep bed slopes. Flume experiments under various geometrical and hydraulic conditions are carried out and interpreted by means of a theoretical model. Finally, a criterion is obtained to estimate flow resistance developed by natural step-pool streams when a formative flow discharge occurs based on geometric quantities only.


Type de document :
Congrès

Source :
Gravel-Bed Rivers Conference, 6, St. Jakob, Autriche, 2005-09, Earth surface processes and landforms, issn : 0197-9337, 2007, vol. 32, n°. 11, p. 1628-1640, nombre de pages : 13, Collation : Illustration, Références bibliographiques : 30 ref.

Date :
2007

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