RT info:eu-repo/semantics/article
T1 Hydraulics of vertical slot fishways: Non-uniform profiles
A1 Fuentes Pérez, Juan Francisco
A1 Tuhtan, Jeffrey A.
A1 Romão, Filipe
A1 Ferreira, M.T.
A1 Kruusmaa, M.
A1 Branco, Paulo
K1 Ingeniería hidráulica
K1 Recursos hídricos
K1 Mecánica de fluidos
K1 Ecología aplicada
K1 Pasos para peces
K1 Fishways
K1 Water depth
K1 Hydraulic design
K1 Water flow
K1 Hydraulic structures
K1 3105 Peces y Fauna Silvestre
K1 3105.04 Protección de Los Peces
K1 3305.15 Ingeniería Hidráulica
K1 2204.03 Flujo de Fluidos
K1 3313.96 Simulación CFD
K1 2508.05 Hidrobiología
AB Vertical slot fishways (VSFs) are hydraulic structures which allow fish to swim around obstacles in rivers. These structures are subject to variations in discharge of either hydrological or operational origin, which result in non-uniform water depth profiles, i.e. differences in the water drops across the slots (ΔH) and mean depths (h0) across the pools. Although non-uniform conditions are present in most VSFs, they are rarely considered in the design and evaluation of fishways. The aim of this work is to provide an introductory analysis of how non-uniform water depth profiles affect the hydrodynamics within the pools of VSFs. This study shows that flow patterns are controlled by changes in ΔH and h0 in addition to slope and other geometrical alterations, as previously suggested. Non-uniformity alters the flow structure in pools and the spatial distributions of hydrodynamic variables. Consequently, critical thresholds of hydrodynamic variables for fish may be reached in VSFs designed with recommended slopes when operating under non-uniform conditions.
PB ASCE (American Society of Civil Engineers)
SN 0733-9429
YR 2019
FD 2019-02
LK https://uvadoc.uva.es/handle/10324/81571
UL https://uvadoc.uva.es/handle/10324/81571
LA eng
NO Journal of Hydraulic Engineering, February 2019, vol. 145, n. 2
NO Producción Científica
DS UVaDOC
RD 16-ene-2026