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 : 34th Congress - Brisbane (2011) : THEME 5: Environmental Hydraulics and Hydrology : Development time of dunes under time-varying flows
Development time of dunes under time-varying flows
Author : A.M. Ferreira da Silva1 and J. Bielenberg2
The first results of a research program devoted to the study of dune development under time-varying flows are presented in this paper. The simplest case of a sudden change in flow depth is considered, the paper focusing on the duration of dune development following the sudden change. Dimensional and physical considerations are used to derive an equation for the duration of dune development. It is found that the resulting equation involves a function of four dimensionless combinations, which needs to be revealed experimentally. Finally, a special series of experimental runs carried out by the authors is used to shed some light on the nature of this function.
File Size : 221,022 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 5: Environmental Hydraulics and Hydrology
Date Published : 01/07/2011
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