A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Two-dimensional free surface flow numerical model for vertical slot fishways
Numerical results of a vertical slot fishway study are presented. The Saint-Venant equations are solved using TELEMAC-2D. Turbulence modelling uses the classical two equations k-ε closure model. A comparison with velocity measurements performed at the Laboratoire d'Etudes Aerodynamiques of University of Poitiers, France, using particle image velocimetry and acoustic Doppler velocimetry permitted to validate numerical results. Turbulence modelling is required not only to have a fish-friendly flow but, more remarkably, by the fact that taking a constant eddy viscosity model gives incorrect mean flow patterns. Three longitudinal slopes were tested. The validity of the k-ε closure model is discussed. Special attention was paid to the calculated turbulent kinetic energy and the energy dissipation rate. This last parameter is of great interest because its spatial distribution significantly affects the progress relative to fish passage efficiency.
Two-dimensional free surface flow numerical model for vertical slot fishways
Numerical results of a vertical slot fishway study are presented. The Saint-Venant equations are solved using TELEMAC-2D. Turbulence modelling uses the classical two equations k-ε closure model. A comparison with velocity measurements performed at the Laboratoire d'Etudes Aerodynamiques of University of Poitiers, France, using particle image velocimetry and acoustic Doppler velocimetry permitted to validate numerical results. Turbulence modelling is required not only to have a fish-friendly flow but, more remarkably, by the fact that taking a constant eddy viscosity model gives incorrect mean flow patterns. Three longitudinal slopes were tested. The validity of the k-ε closure model is discussed. Special attention was paid to the calculated turbulent kinetic energy and the energy dissipation rate. This last parameter is of great interest because its spatial distribution significantly affects the progress relative to fish passage efficiency.
Two-dimensional free surface flow numerical model for vertical slot fishways
Chorda, Jacques (author) / Maubourguet, Marie Madeleine (author) / Roux, Helene (author) / Larinier, Michel (author) / Tarrade, Laurent (author) / David, Laurent (author)
Journal of Hydraulic Research ; 48 ; 141-151
2010-04-01
11 pages
Article (Journal)
Electronic Resource
English
Two-dimensional free surface flow numerical model for vertical slot fishways
| British Library Online Contents | 2010
Research papers - Two-dimensional free surface flow numerical model for vertical slot fishways
| Online Contents | 2010
Research papers Two-dimensional free surface flow numerical model for vertical slot fishways
| Online Contents | 2010
Numerical modeling of flows in vertical single-slot and double-slot fishways
| British Library Conference Proceedings | 2002
Mean Flow and Turbulence Structure in Vertical Slot Fishways
| British Library Online Contents | 2006