Analytical modelling of an U-Oscillating Water Column and performance in random waves

Next, the performance of the U-OWC is investigated by Monte Carlo simulations. In this regard, several simulations are produced for testing the efficiency of the device in sea waves compatible with power spectral density of wind-generated waves and of swells. The efficiency is evaluated according to a number of parameters, that allow highlighting the remarkable amount of energy absorbed by the system. The influence of the turbine is investigated, as well, by comparing the performance of monoplane (with and without guide vanes), biplane and contra-rotating turbines.