Undular bores (Favre Waves) in Open Channels Theory and Numerical Simulation

Undular bores, sometimes called Favre Waves, occur in channels for navigation, irrigation, power production. They are investigated for rectangular and trapezoidal cross-sections by comparing analytical and numerical models with experimental data. Undular bores in trapezoidal channels are shown to differ significantly from those in rectangular channels; waves are higher above the embankments than in the center. An extension of the Boussinesq wave theory has been used succesfully to describe these phenomena.