(Article of periodic en Anglais - 2014)

Document title

Flume experimental evaluation of the effect of rill flow path tortuosity on rill roughness based on the Manning–Strickler equation

Authors(s) and Affiliation(s)

STROHMEIER S.M. (1) ; NOUWAKPO S.K. (2) ; HUANG C.-H. (3) ; KLIK A. (1) ;
(1) Univ. of Natural Resources and Life Sciences, Dept. of Water, Atmosphere and Environment, Vienna, AUTRICHE
(2) Univ. of Nevada Reno, Natural resources and Environment Sciences, Reno, ETATS-UNIS
(3) USDA-ARS National Soil Erosion Research Lab., Purdue Univ., West Lafayette, ETATS-UNIS


The aim of this study is to evaluate the effect of rill morphology on roughness and hence to assess the Manning–Strickler roughness coefficient (kSt) by rill morphological data. A laboratory experiment was set up to analyse rill hydraulics and roughness of I.) Free Developed Rill (FDR) flows and II.) Straight Constrained Rill (SCR) flows in the flume. It is highlighted that rill roughness was highly variable and relates to rill morphology. The AA. conclude that flow path tortuosity can be used to assess local friction effects


Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2014, no118 [pp. 226-233]

Bibliographic references : 36 ref.

Collation : 8 fig., 3 tabl.



INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2014.01.011

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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