Suspended Sediment in the Surf Zone
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 112, Issue 1
Abstract
The vertical distribution of suspended sediment under broken waves is considered. Close to the seabed, the turbulence is dominated by the wave‐boundary layer, which determines the amount of suspended sediment very close to the bottom. Away from the bottom, the main contribution to the turbulence intensity originates from the surface generated turbulence due to wave breaking. This is described by application of the transport equation for turbulent kinetic energy. The production of kinetic energy is estimated from the energy loss in a hydraulic jump. The vertical distribution of suspended sediment is obtained from the diffusion equation. The theoretical findings are compared with laboratory experiments and field measurements.
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References
1.
Bagnold, R. A., “Experiments on a Gravity‐Free Dispersion of Large Solid Spheres in a Newtonian Fluid under Shear,” Proceedings, Royal Society, London, England, Ser. A, 225, 1954, p. 49.
2.
Bakker, W. T., “Sand Concentration in an Oscillatory Flow,” Coastal Engineering Conference, 1974, pp. 1129–1148.
3.
Bakker, W. T., and Doorn, Th., “Near‐Bottom Velocities in Waves with a Current,” Coastal Engineering Conference, 1978, pp. 1394–1413.
4.
Bosman, J., “Calibration of Optical Systems for Sediment Concentration Measurements,” Delft Hydraulics Lab., R 716, Part V, 1983.
5.
Engelund, F., and Fredsøe, J., “A Sediment Transport Model for Straight Alluvvial Channels,” Nordic Hydrology, Vol. 7, 1976, pp. 293–306.
6.
Fredsøe, J., “Turbulent Boundary Layer in Wave and Current Motion,” Journal of Hydraulic Engineering, ASCE, Vol. 110, No. 8, 1984, pp. 1103–1120.
7.
Fredsøe, J., Andersen, O. H., and Silberg, S., “Distribution of Suspended Sediment in Large Waves,” Journal of Waterway, Port, Coastal, and Ocean Engineering, ASCE, Nov., 1985.
8.
Grant, W. D., and Madsen, O. S., “Combined Wave and Current Interaction with a Rough Bottom,” Journal of Geophysical Research, Vol. 84, 1979, pp. 1797–1808.
9.
Grant, W. G., and Glenn, S. M., “Continental Shelf Bottom Boundary Layer Model, Vol. I: Theoretical Model Development,” Woods Hole Oceanographic Institution, Ocean Engineering Dept., 1983.
10.
Launder, B. E., and Spalding, D. B., “Mathematical Models of Turbulence,” Academic Press, London and New York, 1972.
11.
Madsen, P. A., and Svendsen, I. A., “Turbulent Bores and Hydraulic Jumps,” Journal of Fluid Mechanics, Vol. 129, 1983, pp. 1–25.
12.
Nielsen, P., “Some Basic Concepts of Wave Sediment Transport,” Institute of Hydrodynamics and Hydraulic Engineering, Technical Univ. of Denmark, Series Paper 20, 1979.
13.
Nielsen, P., Green, M. O., and Coffey, F. C., “Suspended Sediment under Waves,” Department of Geography, The Univ. of Sidney, Coastal Studies Unit, Technical Report No. 8216, 1982.
14.
Rouse, H., Siao, T. T., and Nagaratnam, S., “Turbulence Characteristics of the Hydraulic Jump,” Proceedings, ASCE, Vol. 84, No. HY1, 1958, pp. 1–30.
15.
Staub, C., Svendsen, I. A., and Jonsson, I. G., “Measurements of the Instantaneous Sediment Suspension in Oscillatory Flow,” Progress Report 58, Institute of Hydrodynamics and Hydraulic Engineering, Technical Univ. of Denmark, 1983, pp. 41–49.
16.
Stive, M. J. F., “Velocity and Pressure Field of Spilling Breakers,” Proceedings 17th Coastal Engineering Conference, 1980, pp. 547–566.
17.
Svendsen, I. A., and Madsen, P., “A Turbulent Bore on a Beach,” Journal of Fluid Mechanics, 148, 1984, pp.73–96.
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Copyright © 1986 ASCE.
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Published online: Jan 1, 1986
Published in print: Jan 1986
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