Numerical study and hydrodynamic analysis of Sharrow propeller

Propellers are considered as the main propulsion of vessels and from the beginning until now, engineers have always been trying to increase the performance of propellers, including their thrust and efficiency.Since new propellers, Sharrow Propeller, have been introduced, this research attempts to design, model, and analyze this propeller type.Considering that there is no information available on the performance characteristics of these propellers, including thrust and efficiency, they should be compared with the propellers of the B-series and the standard series of high-speed vessels with the same diameter and pitch to make sure that the geometry of the modeled propeller can be used as a vessel propeller.For this purpose, modeling was done using SolidWorks software, and two propellers with different geometric parameters but with the same diameter and pitch were modeled.To check the performance of the propeller, an open water test was taken in the simulation software STAR CCM + and data such as the thrust and torque produced by the propeller and the efficiency of the propeller were extracted.These characteristics are compared with the other mentioned propellers.The result was that Sharrow propeller 1 has a 3 to 27% increase in efficiency compared to other propellers and Sharrow propeller 2 produces 1.5 to 2.5 times more thrust.