Research Article
Sep 1976
Flow and Bed Topography in Curved Open Channels
Authors: Hideo Kikkawa, Akira Kitagawa, and Syunsuke IkedaAuthor Affiliations
Publication: Journal of the Hydraulics Division
Volume 102, Issue 9
Abstract
Mean flow characteristics and bed shear distributions in uniformly curved open channels have been studied theoretically, and the results are compared with experiments and field observations. Next, an equation which expresses the variation of transverse bed profile is derived by considering an equilibrium of forces acting on a sand particle. It is shown that the magnitude of the secondary flow and the transverse bed slope determine the direction of sand movement. The numerical solution of the bed variation with time are compared with experiments, and it is concluded that the model employed here describes the bed variation fairly well. The stable profile of the bed is obtained analytically, and from this result the maximum depth of scour which occurs at the outer banks is calculated.
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Published In
Journal of the Hydraulics Division
Volume 102 • Issue 9 • September 1976
Pages: 1327 - 1342
Copyright
© 1976 American Society of Civil Engineers.
History
Published in print: Sep 1976
Published online: Feb 3, 2021
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Hideo Kikkawa
Prof., Dept. of Civ. Engrg., Tokyo Inst. of Tech., Tokyo, Japan
Akira Kitagawa
Research Engr., The Public Works Research Inst., Ministry of Construction, Tokyo, Japan
Syunsuke Ikeda
Lect., Dept. of Foundation Engrg., Saitama Univ., Saitama, Japan
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.