Abstract
For the analysis, a vane wheel was considered consisting of two portions, namely, a turbine portion and a propeller portion. The turbine portion was designed using Blade Element Momentum Theory (BEMT); the propeller portion, Computational Fluid Dynamics (CFD) under open-water conditions. Model tests were conducted at Hyundai Maritime Research Institute (HMRI) in their towing tank, using a Contra Rotating Propeller (CRP) dynamometer. Model tests as well as full-scale CFD calculations were performed to predict overall performance. The CFD calculations showed better performance compared to the model tests. In general, the analyzed vane wheel improved the propulsive efficiency via power reduction compared to the case without a vane wheel.
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