Author(s): Jiayue Hu; Hubert Chanson; Matthew Mason
Linked Author(s): Hubert Chanson
Keywords: Wind tunnel Wall jet flow Physical modelling Hydraulic jump
Abstract: Hydraulic jump have been studied for several centuries but due to limited instrumentations and flow conditions, some velocity measurements cannot be achieved in the water flume. In the present study, a hydraulic jump model was built in the wind tunnel in order to develop an analogy between hydrodynamics and aerodynamics. In order to gain new knowledge in terms of turbulence and dissipation, visualisations with wool strings and smoke generators revealed distinct flow regions: jet flow, recirculation zones, and shear zones as exist in hydraulic systems. Velocity profiles from Prandtl-Pitot tubes and S-tubes showed consistent flow characteristics between wind tunnel and hydraulic jump models.
Year: 2025