Flow roughness evaluation of mobile-bed streams

Słowa kluczowe: Bed load, sediment transport, flood flow, slurry pipe, upper plane bed


Recent field measurements of mobile-bed roughness in selected streams in Czech Republic are described. The results are collected in a database organized to a www catalogue. The field results of the bed roughness in two gravel-bed streams under flash flood conditions are discussed. A methodology is suggested for evalua-tion of the bed roughness of straight channels transporting sediments.
A prediction of the bed roughness under the condition of intense sediment trans-port in the upper plane bed regime is demonstrated on the results of laboratory pressurized-pipe tests. An application to flood conditions in a steep mountain creek is shown in a case study.


Matoušek V. 2010, vol. 7. Flow roughness evaluation of mobile-bed streams. Infrastruktura i Ekologia Terenów Wiejskich. Nr 2010, vol. 7/ 11