Scale effects of turbulence in vertical slot fishways : field ans laboratory measurement investigation

Damien Calluaud (1) , Vincent Cornu (2, 3) , Badreddine Bourtal (2) , Laurent Dupuis (2) , Christian Refin (2) , Dominique Courret (3) , Laurent David (1)

1 HydEE - Hydrodynamique et écoulements environnementaux [Institut Pprime]
2 PPrime [Poitiers] - Institut Pprime [UPR 3346]
3 IMFT - Institut de mécanique des fluides de Toulouse

Scale effects arise due to force ratios which are not identical between a model and its full-scale prototype and result in deviations between the scaled model and prototype observations. This paper describes scales effects in vertical slot fishway flow by comparisons of turbulence behaviours measured in 1:4 scale laboratory model and full-scale fishway. Full-scale measurements are exposed. Flow topology, mean flow and unsteady velocity components features, turbulence kinetic energy profiles are evaluated and compared to measurements model.

Mots clés: Vertical slot fishway; Turbulence; Scale effect

Domaines: Hydrologie; Milieux et Changements globaux

Damien Calluaud, Vincent Cornu, Badreddine Bourtal, Laurent Dupuis, Christian Refin, et al.. Scale effects of turbulence in vertical slot fishways : field ans laboratory measurement investigation. 9th International Symposium on Ecohydraulics - ISE 2012, Sep 2012, Vienne, Austria. ⟨hal-00987502⟩