Abstract
A k-ε turbulence model is employed, coupled with special boundary conditions for dissipation at the free surface, to numerically simulate uniform open-channel flows through vegetation. For the calibration of some parameters involved in the model, predicted vertical profiles of spatially averaged mean velocities, standard deviations of the velocity components, and eddy viscosities are compared with experimental observations. The computed velocity and turbulence fields are then used to solve the vertical sediment diffusion equation and hence compute the equilibrium vertical distribution of suspended sediment. Numerical integration of suspended sediment and velocity profiles allows for the estimation of sediment transport rates, and thus sediment transport capacities under different flow conditions and vegetation characteristics. Numerical results are compared against computations for non-vegetated channels.
Original language | English (US) |
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Title of host publication | International Water Resources Engineering Conference - Proceedings |
Editors | William H. Espey, Phil G. Combs |
Publisher | ASCE |
Pages | 104-108 |
Number of pages | 5 |
Volume | 1 |
State | Published - 1995 |
Event | Proceedings of the 1st International Conference on Water Resources. Part 1 (of 2) - San Antonio, TX, USA Duration: Aug 14 1995 → Aug 18 1995 |
Other
Other | Proceedings of the 1st International Conference on Water Resources. Part 1 (of 2) |
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City | San Antonio, TX, USA |
Period | 8/14/95 → 8/18/95 |
ASJC Scopus subject areas
- General Earth and Planetary Sciences
- General Environmental Science