Growth Model for Sand Wavelets
Publication: Journal of Hydraulic Engineering
Volume 131, Issue 10
Abstract
Lower-flow regime sand waves emerge from flat sand beds under steady uniform flow conditions. The time variation of the sand-wavelet height and length from inception to equilibrium are derived from linear and nonlinear ordinary differential equation models. The nonlinear model predicts more reasonably time variations of the bed-form length than the linear model. The results of the model are supported by the laboratory experimental data of Bishop in 1977 and Melville and Coleman in 1994.
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Acknowledgments
The writers thank Professor M.S. Yalin for discussing several parts of this research and Professors S.E. Coleman and B.W. Melville for permitting the use of Fig. 1. The constructive criticisms by the associate editor and the anonymous reviewers contributed to the improvement and clarity of the final version of the paper. The second writer acknowledges the support of the Research Board University of Missouri System (Grant No. R342505).
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Published In
Journal of Hydraulic Engineering
Volume 131 • Issue 10 • October 2005
Pages: 866 - 876
Copyright
© 2005 ASCE.
History
Received: Mar 21, 2002
Accepted: Aug 24, 2004
Published online: Oct 1, 2005
Published in print: Oct 2005
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