Potential of performance improvement of a modified Wells turbine using passive control for wave energy conversion

摘要: Wells turbine is widely used to convert wave energy into mechanical energy, although it suffers from a narrow operating range, low power output, and low efficiency. The study of the effect of Gurney flap geometry and Reynolds number on the performance of a Wells turbine is considered as an innovative work due to the research gap in this area. This work investigates the effect of a circular cavity in a rectangular Gurney flap, the cavity geometries, Gurney flap geometries, and finally a Reynolds number on the Wells turbine performance to …