Abstract
This short paper outlines tests in the GWK during March / April 2014 on a generalised Oscillating Water Column (OWC) wave energy converter. The tests (at approximately 1:5 to 1:9 of full scale) measured wave loads, water column movements, air pressures and air flows through a number of orifices simulating turbine losses, including full closure. The tests will provide unique calibration data for CFD models using compressible air in the chamber. Additionally, by direct comparison with small-scale physical model tests, scale effects in wave loading and device performance will be explored in detail.