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.
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You are here : eLibrary : IAHR World Congress Proceedings : 32nd Congress - Venice (2007) : THEME A: Engineering and Management of Fresh-water Systems : One dimension criteria for velocity reversal occurrence
One dimension criteria for velocity reversal occurrence
Author : Caamaño Diego, Goodwin Peter
Since Keller 1971 first proposed the velocity reversal hypothesis for pool-riffle channels, there has been considerable interest expressed in the literature about this phenomenon with a diverse range of opinions about whether this process exists and, if it does, the conditions under which it can be expected to occur. In order to help resolve this debate, an analytical criteria for the conditions for velocity reversal has been developed. Although a simplified one dimensional approximation is used to analyze the flow field through pool-riffle sequences, it is proven that the velocity reversal can take place and quantifies the physical characteristics of the channel morphology for this to occur. Expected errors and other uncertainties are currently been quantified through three dimensional model simulations and field observations.
File Size : 182,835 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
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