Incipient Motion of Coarse Particles on a Slope by Regular or Irregular Waves
This article has a reply.
VIEW THE REPLYPublication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 124, Issue 1
Abstract
The initiation of motion of coarse particles in the region of wave breaking is studied. The nondimensional sediment and wave characteristics that are significant in this phenomenon are determined. Experiments are performed with regular and irregular waves to investigate the initiation of motion of gravel on a straight slope. Effects of variables such as wave height and period, water depth, particle size, and beach slope on the incipient depth of motion are clarified. The experimental results are used to obtain regression equations to predict the incipient depth of motion for the cases of regular and irregular waves. These equations relate the nondimensional threshold motion depth to the stability number, surf similarity parameter, and beach slope. The formulas are compared with the results of an earlier study. The discrepancies are explained as being caused by the longer duration of the earlier experiments where the purpose was to determine the equilibrium depth of the coastal slope.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Battjes, J. A. (1974). “Computation of set-up, longshore currents, run-up and overtopping due to wind-generated waves.”Tech. Rep. No. 74-2, Dept. of Civ. Engrg., Delft Univ., Delft, The Netherlands.
2.
Sawaragi, T., and Iwata, K. (1974). “Wave deformation after breaking.”Proc., 14th Conf. Coastal Engrg., ASCE Press, New York, N.Y., 481–499.
3.
Schiereck, G. J., Fontijn, H. L., Grote, W. V., and Sistermans, P. G. J. (1994). “Stability of rock on beaches.”Int. Coastal Engrg. Conf. (ICCE), Kobe, 1553–1567.
4.
Ünal, N. E. (1996). “Initiation of motion of coarse particles on a slope by regular or irregular waves,” PhD thesis, Istanbul Technical University, Istanbul, Turkey (in Turkish).
5.
van der Meer, J. W. (1988). “Rock slopes and gravel beaches under wave attack.”Delft Hydr. Pub. No. 386, Delft, The Netherlands.
6.
van der Meer, J. W. (1993). “Conceptual design of rubble mound breakwaters.”Delft Hydr. Pub. No. 483, Delft, The Netherlands.
7.
van Hijum, E., and Pilarczyk, K. W. (1982). “Equilibrium profile and longshore transport of coarse material under regular and irregular wave attack.”Delft Hydr. Pub. No. 274, Delft, The Netherlands.
Information & Authors
Information
Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 124 • Issue 1 • January 1998
Pages: 32 - 35
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Jan 1, 1998
Published in print: Jan 1998
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.