Initiation of ripple marks under oscillating water
- 1 February 1979
- journal article
- Published by Wiley in Sedimentology
- Vol. 26 (1) , 101-113
- https://doi.org/10.1111/j.1365-3091.1979.tb00340.x
Abstract
It was observed that a monolayer of glass beads which were scattered sparsely on a rigid plane floor grew into regular waves of particles under oscillatory water flow. The relative displacement of two nearby particles due to viscous fluid forces seems to be responsible for the initiation of these particle waves. It was also observed that the similar particle waves were formed on the initially flat surface of a thick sand bed and subsequently developed into oscillatory sand ripples of a common type. On the basis of these observations, it is suggested that the particle waves may be the basic cause of the initiation of general ripple marks under oscillatory flow.Keywords
This publication has 3 references indexed in Scilit:
- The lateral migration of spherical particles sedimenting in a stagnant bounded fluidJournal of Fluid Mechanics, 1977
- Rollers and ripples in sand, streams and sky: rhythmic alteration of transverse and longitudinal vortices in three ordersSedimentology, 1976
- 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