Abstract
A twin unidirectional impulse turbine has been proposed in order to enhance the efficiency of wave energy plant. This turbine uses two impulse turbines for unidirectional airflow and their flow direction is opposite each other. The turbine characteristics under steady flow conditions were investigated numerically by computational fluid dynamics (CFD) and compared with the experimental results. The effect of rotor blade profile on the performances were discussed in this study. Then, a suitable blade profile for the twin turbine was proposed.
