Abstract
The numerical method for analyzing a floating type of wave energy conversion device fixed on the water surface is described under the condition that the linear water wave theory is applicable. The method is proposed in order to calculate the device characteristics of an air chamber. It uses the flow rate and the gauge pressure in the air chamber directly, because the interaction between oscillating water column and the turbine is controlled only by the flow rate and the pressure drop through the turbine in this system. It is confirmed that the solution gives good agreement with the experimental data