Volume 13, Issue 5 (2013)
MCEJ 2013, 13(5): 11-11 |
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kaboorani S, shanesaz zade A. Modeling the saltation and evaluating the parameters affecting the random movement of sediment particles in bed load transport under steady flow. MCEJ 2013; 13 (5) :11-11
URL: http://mcej.modares.ac.ir/article-16-2250-en.html
URL: http://mcej.modares.ac.ir/article-16-2250-en.html
1- Assistant Professor, Faculty of Engineering, University of Isfahan
Abstract: (6459 Views)
Study on the physics of sediment particle movement in micro scale is essential for better understanding sediment transport phenomenon and estimating the rate of sediment transport in rivers and marine environment. Sediment particles basically transport in two modes of bed and suspended load. Bed load takes place through sliding, rolling and saltation. Many parameters influence on this process, which their effects are not fully understood. In this research the influence of the affecting parameters on movement of sediment particles in saltation under unidirectional steady flow are investigated. First, a numerical model is developed to simulate the particle motion in bed load saltation. Then the influencing parameters such as particle shape and its position between other particles, upon the jump length and average velocity of the particles are studied. The result of the study improves our understanding and results in better estimation of sediment transport rate for engineering application.
Received: 2011/08/15 | Accepted: 2013/08/12 | Published: 2013/12/22
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