Mathematical Modeling and Torque Estimation For a Uni Directional Flap Turbine

Abstract

This document is intended to quantify the amount of torque that can be produced from a flap tubine shown in the figure. The flap turbine is a ocean turbine designed in such a way that the forward and the backward waves make the turbine to rotate in the same direction. The flap arrangement open and closes to create torque in one particular diirection even though the source of the torque i.e the wave change direction. The model considers a simple mechanics principle of momentum transfer before and after impact and the torque is estimated as a function of the turbine geometric parameters and the wave approach velocity.