Fish guidance system for a river water intake - experimental and numerical study

Abstract Fish guidance systems associated to water intakes represent an important feature, mandatory prevent fish from being accidentally drawn into artificial hydraulic facilities. Such are recommended for a proper integration of the intake surrounding environment and contribute reducing impact on environment. In this paper prototype system which can be applied river is presented analysed. The guided by means air bubbles curtain, influence flow water. This study was performed numerically in Fluent software experimentally laboratory conditions. Velocity distribution maps were achieved using Particle Image Velocimetry technique two flowrates. results part recorded data, have purpose validate numerical model case without curtain. A second evaluate changes caused curtain velocity. obtained simulations good correlation with experimental PIV demonstrate that efficient solution protection their natural