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Dec 31, 2015
Wave Induced Velocities Close to a Rippled Bed
Author: C. G. du ToitAuthor Affiliations
Publication: Coastal Engineering 1982
Abstract
The results are reported of velocity measurements in oscillatory flow over rippled beds. Velocities were measured with a laserdoppler anemometer in both an oscillating tray rig and an oscillatory flow U-tube. Both self-formed and artificial ripples were examined.
The results obtained in the two test rigs were compared and it was concluded that the flow fields obtained in the two cases were dynamically similar.
Measurements of the flow field clearly showed the formation, growth and ejection of vortices, as well as a strong surge of fluid over the ripples during and after flow reversal.
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© 1982 American Society of Civil Engineers.
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Published online: Dec 31, 2015
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C. G. du Toit
Senior Lecturer, Department of Civil Engineering, University of Stellenbosch, Stellenbosch 7600, South Africa.
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