Flow and Bed Profile in Meandering Sand‐Silt Rivers
Publication: Journal of Hydraulic Engineering
Volume 112, Issue 7
Abstract
Mathematical models for defining three‐dimensional flow and bed topography in sinuous channels with suspendable bed material are presented. It is shown theoretically that the secondary flow in sinuous channels shows a reduction in its magnitude below that of a uniformly‐curved channel, and also displays a phase‐lag relative to the channel plan‐form. The model for bed topography is derived by considering the sediment balance for bed load and suspended load, the transport rate and direction, all of which are governed by the three‐dimensional flow. A laboratory test supports the model. The present study has made it possible to predict the large‐scale bed topography of meandering sand‐silt rivers, including such features as the magnitude and the location of local scour and point‐bar deposits.
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Information & Authors
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Published In
Journal of Hydraulic Engineering
Volume 112 • Issue 7 • July 1986
Pages: 562 - 579
Copyright
Copyright © 1986 ASCE.
History
Published online: Jul 1, 1986
Published in print: Jul 1986
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