SolidWorks Flow Simulation surface libre

Hi all

I am a Master's student in Mechanics. As part of my end-of-studies internship, I am working on the effect of water flow on an offshore wind turbine tower. 

The modelling is based on experimentation in a wave channel in the laboratory. Thus, it is a cylinder immersed in 25 cm of water and fixed at the level of its emerging part. 

I'm a beginner with SolidWorks and in particular Flow Simulation that I'm discovering. My question is as follows:

Would there be an option or trick to simulate the movement of the waves in the channel? 

I can't find a way to insert the wave equation on a part of the domain that would be composed of 5 cm of water and 5 cm of air, so straddling the two fluid domains.

Details:

I work in external flow. The results are valid with a flow established in the longitudinal direction (x).

Feel free to ask me for more details if it's not clear.

Thank you in advance for your time and help.