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Traditional HATs (horizontal axis turbines) are predominantly used for wind and tidal energy generation. HATs have higher power production than VATs (vertical axis turbines) for which also requires a rotational motion of their rotors. Existing HAT installations and operations are widely seen as wind turbines on land and hydrokinetic turbines underwater. However, the operation of both HAT and VAT requires...
Tidal turbine rotor blade fractures and failures have resulted in substantial damage and hence cost of repair and recovery. The present work presents a rotor blade design and optimization method to address the blade structural strength design problem. The generic procedure is applicable to both turbine rotors and propellers. The optimization method seeks an optimum blade thickness distribution across...
A computational hydrodynamics method was formulated and implemented for horizontal axis tidal turbines. This paper presents a comparative analysis between screw propellers and horizontal axis turbines, in terms of geometry and motion parameters, inflow velocity analysis and the implementation methodologies. Comparison and analysis are given for a marine propeller model and a horizontal axis turbine...
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