An ordinary differential equation for velocity distribution and dip-phenomenon in open channel flows

@article{Absi2011AnOD,
  title={An ordinary differential equation for velocity distribution and dip-phenomenon in open channel flows},
  author={Rafik Absi},
  journal={Journal of Hydraulic Research},
  year={2011},
  volume={49},
  pages={82 - 89}
}
  • R. Absi
  • Published 1 February 2011
  • Engineering
  • Journal of Hydraulic Research
An ordinary differential equation (ODE) for velocity distribution in open channel flows is presented based on an analysis of the Reynolds-averaged Navier–Stokes equations and a log-wake modified eddy viscosity distribution. This proposed equation allows to predict the velocity-dip-phenomenon, i.e. the maximum velocity below the free surface. Two different degrees of approximations are presented, a semi-analytical solution of the proposed ODE, i.e. the full dip-modified-log-wake law (fDMLW-law… 

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