When an internal waves encounters a boundary, the reflection process is very different than for classical waves, like acoustic or optical waves. Because of the particular dispersion relation for internal waves, the wavelength is modified by the reflection although no nonlinear process is involved. With this process, linear waves can be focused and eventually reach nonlinear regimes and break.
In order to learn more about this process, we performed several experiments at the Coriolis Platform.
We used the Internal wave maker designed in 2007 to generate an internal wave beam impinging a linear slope.