IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
Log On
About IAHRDirectoryCommitteesMy IAHRNews & JournalseLibraryeShopEventsJoin IAHRWorld CongressDonate
spacer.gif
spacer.gif eLibrary
spacer.gif eLibrary
You are here : eLibrary : IAHR World Congress Proceedings : 32nd Congress - Venice (2007) : THEME A: Engineering and Management of Fresh-water Systems : Experimental analysis of the formation of step-pool sequences
Experimental analysis of the formation of step-pool sequences
Author : Recchia Nicola and Armanini Aronne
The paper describes a possible mechanism of genesis of the step-pool sequences. Steps and pools have been observed in steep natural water streams in presence of a poorly sorted grain size distributions. This kind of bed forms are often described in the literature as weirs transversal to the channel, made by pebbles, cobbles or boulders (steps) and followed by a mild zone (pools). Nevertheless the origin of these morphological structures is nowadays uncertain. In order to investigate the possible origin of such a kind of bed forms a laboratory analysis has been conduced in a recirculating flume, using different grain size distributions and different liquid and solid discharges. This analysis has shown several types of bedforms assimilable from a morphological point of view to step-pool sequences.
File Size : 6,611,066 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 32nd Congress - Venice (2007)
Article : THEME A: Engineering and Management of Fresh-water Systems
Date Published : 01/07/2007
Download Now