A CONTRIBUTION TO THE STUDY OF VORTEX RIPPLES
- 1 July 1975
- journal article
- research article
- Published by Taylor & Francis Ltd in Journal of Hydraulic Research
- Vol. 13 (3), 315-328
- https://doi.org/10.1080/00221687509499705
Abstract
The fluid velocities close to a two-dimensionally rough bed in oscillatory flow are obtained by numerical solution of the equation of vorticity. It is observed that the fluid close to the bed drifts towards the crests and it is suggested that this provices a mechanism for the formation of vortex ripples by water waves. On the assumption that the ripples which form correspond to maximum fluid drift towards the crest, a theoretical relationship is derived for ripple wavelength in terms of the flow parameters. This relationship shows quite good agreement with experimental results for ripples when sediment exchange between adjacent crests is small.This publication has 3 references indexed in Scilit:
- A Study on Sand Movement Due to Wave ActionCoastal Engineering in Japan, 1967
- WAVE-GENERATED RIPPLES IN NEARSHORE SANDSPublished by Defense Technical Information Center (DTIC) ,1957
- Motion of waves in shallow water. Interaction between waves and sand bottomsProceedings of the Royal Society of London. Series A - Mathematical and Physical Sciences, 1946