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Title: A New Model for Sediment Transport
Author: Lin M(林缅) ; Yuan ZD(袁志达) ; Zou SM(邹舒觅)
Issued Date: 2004-09-05
Conference Name: Sixth World Congress on Computational Mechanics in Conjunction with the Second Asian-Pacific Congress on Computational Mechanics,Sept. 5-10, 2004, Beijing, China
Abstract: The problem of predicting sediment transportation by water waves is treated analytically with the rate of wave energy dissipation or wave damping. With resorting to the theory of shallow water waves and the basis of Yamamoto’s Coulomb-damped poroelastic model, the Boussinesq-type equation has been derived over a variation depth bed. For convenience Cnoidal wave is just discussed, The Cnoidal wave with complex wave length and wave velocity, which are as a function of wave frequency, water depth, permeability, Poisson’s ratio and complex elastic moduli of bed soil, is applied to analyse the rate of sediment transportation. Considering the sediment transportation depended on the shear stress near-bed or the horizontal velocity, the conclusion of Yamamoto’s experiment in clay bed has been extended to general situation. It could be figured out that the model should provide a method to avoid the undistinguishable factors during sediment transport processes and relate mass transport with the sediment peculiarities.
Subject: 力学
Corresponding Author: 林缅
Source: Proceedings of the Sixth World Congress on Computational Mechanics in Conjunction with the Second Asian-Pacific Congress on Computational Mechanics,2004, pp.362-371
Content Type: 会议论文
URI: http://dspace.imech.ac.cn/handle/311007/13845
Appears in Collections:力学所知识产出(1956-2008)_会议论文

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