FEBRUARY 10, 2019
By Nicholas A. Husser and Adrian S. Onas
In this paper, the feasibility of experimentally testing 3D printed propellers was investigated at Reynolds numbers where scale effects were significant. Hama strips were printed on the leading edge of a B-series model propeller’s blades and open water tests were performed with both unstimulatedand stimulated propellers for ℝe=105to5×105. Two effects were studied, the first being the effect of the 3D printed material onpropeller hydrodynamics at model scale by comparing test results from theunstimulatedpropeller tests to the original B-series tests at the Netherlands Ship Model Basin (NSMB). Second, the effects of Hama strips on the propeller model test results are studied through comparison of unstimulatedand stimulated results at the same test conditions. Finally, the feasibility of the implementation of turbulence stimulators for model propeller testing is discussed.
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