Analytical models for velocity distributions in open channel flows
- 1 July 2009
- journal article
- research article
- Published by Taylor & Francis Ltd in Journal of Hydraulic Research
- Vol. 47 (4), 418-428
- https://doi.org/10.1080/00221686.2009.9522017
Abstract
Various models for the analytical solution to the depth-integrated Navier-Stokes equations, applied to open channel flows, are discussed. These models include the effects of bed friction, lateral turbulence and secondary flows. The model developed by Shiono and Knight (1988, 1991) is compared with those by Ervine et al. (2000) and Castanedo et al. (2005) through numerical experiments on both simple and compound channels. These tests show that the impact of the secondary flow term on the results is significant. It is also shown that the dimensionless eddy viscosity coefficient has less influence on the results than the secondary flow terms for overbank flows, but is important for inbank flows. A comparison of the analytical results with experimental data shows that the model by Shiono and Knight produces well velocity distributions within open channels of various prismatic shapes.This publication has 20 references indexed in Scilit:
- Quasi two-dimensional model for straight overbank flows through emergentJournal of Hydraulic Research, 2007
- A practical approach to estimating the flow capacity of rivers – Application and analysisPublished by Taylor & Francis Ltd ,2006
- A new perspective on sidewall correction procedures, based on SKM modellingPublished by Taylor & Francis Ltd ,2006
- Stage-discharge prediction for rivers in flood applying a depth-averaged modelJournal of Hydraulic Research, 2004
- REFINED CALIBRATION OF A DEPTH-AVERAGED MODEL FOR TURBULENT FLOW IN A COMPOUND CHANNEL.Proceedings of the Institution of Civil Engineers - Water, Maritime and Energy, 1996
- Flow formulae for straight two-stage channelsJournal of Hydraulic Research, 1993
- Turbulent open-channel flows with variable depth across the channelJournal of Fluid Mechanics, 1991
- Turbulence measurements in a shear layer region of a compound channelJournal of Hydraulic Research, 1990
- An improved method of calculation for steady uniform flow in prismatic main channel/flood plain sectionsJournal of Hydraulic Research, 1990
- The SERC Flood Channel FacilityWater and Environment Journal, 1987