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Communication Dans Un Congrès Année : 2023

Scale effects in a Vertical Double Slot Fishway

Richard Tessier
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Laurent Dupuis
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Résumé

This paper presents results on the scaling effects between a full-scale a Vertical Double Slot Fishway (VDSF) in Malause, on the Garonne River (France) and its 1:6 model reproduction in the Pprime Institute of the University of Poitiers (France), which assured the Froude similitude. Acoustic Doppler Velocimetry (ADV) measurements were performed to access the three components of the velocity on two profiles in each fishway. Full-scale measurements are exposed. Flow topology, mean flow and unsteady velocity components features as well as turbulence kinetic energy are evaluated for both scales and compared to one another. Results show a good agreement between the dynamics of the turbulent flow in both scales, which indorse the use of laboratory scale models for designing full-scale fishways in the future and in particular VDSFs. The flow and turbulence features could be estimated from laboratory experiments and extrapolated for an ecohydraulics point of view.
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Dates et versions

hal-04485966 , version 1 (08-03-2024)

Identifiants

  • HAL Id : hal-04485966 , version 1

Citer

Anne-Fleur Lejeune, Damien Calluaud, Laurent David, Gérard Pineau, Jean Carl Rousseau, et al.. Scale effects in a Vertical Double Slot Fishway. 40th IAHR World Congress : Rivers – Connecting mountains and coasts, International Association for Hydro-Environment Engineering and Research (IAHR), Aug 2023, Vienna, Austria. ⟨hal-04485966⟩
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