Hydrodynamics of trapezoidal embankment weirs

This paper presents the results of an experimental study over a 2-dimensional trapezoidal weir model with the upstream and downstream faces sloped at 1:2 (V:H). The flow field has been measured using Particle Image Velocimetry (PIV). Several hydrodynamic properties of the flow, including the different flow regimes, free surface profile, mean and instantaneous velocity fields, and discharge coefficient, are discussed and analyzed.