Vertical dispersion of spherical, heavy particles in turbulent open channel flow
- 21 January 1985
- journal article
- research article
- Published by Taylor & Francis Ltd in Journal of Hydraulic Research
- Vol. 23 (1), 5-20
- https://doi.org/10.1080/00221688509499373
Abstract
The results of an experimental study on the motion of heavy particles (heavierthan water) in an open channel flow over a smooth bed are presented in the paper. Some aspects of the diffusion and dispersion of the particles are analysed and especially the effects of lift force and the quadratic nature of drag forces when present. The results show that for a given fall velocity in still water, the vertical dispersion increases with increase in particle diameter. Measured mean particle downward velocities are lower than the settling velocities in still water.Keywords
This publication has 10 references indexed in Scilit:
- Particle motions near the bottom in turbulent flow in an open channel. Part 2Journal of Fluid Mechanics, 1981
- VELOCITY PROFILES WITH SUSPENDED SEDIMENTJournal of Hydraulic Research, 1981
- Particle motions near the bottom in turbulent flow in an open channelJournal of Fluid Mechanics, 1978
- Fluid forces on a body in shear-flow; experimental use of ‘stationary flow'Proceedings of the Royal Society of London. Series A - Mathematical and Physical Sciences, 1974
- Pneumatic transportJournal of Fluid Mechanics, 1969
- The vertical diffusivity and mean velocity of particles in a horizontal water pipeJournal of Fluid Mechanics, 1963
- The mean velocity of slightly buoyant and heavy particles in turbulent flow in a pipeJournal of Fluid Mechanics, 1958
- The Mean Velocity of Discrete Particles in Turbulent Flow in a PipeProceedings of the Physical Society. Section B, 1955
- The dispersion of matter in turbulent flow through a pipeProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1954
- Turbulent Boundary Layers in Adverse Pressure GradientsJournal of the Aeronautical Sciences, 1954