Sail Milling

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GRØN DYST 2014 Technical University of Denmark

Sail Milling
Paper
Author:S. Reinert (DTU Mechanical Engineering, Technical University of Denmark, Denmark)
N. H. Iversen (DTU Mechanical Engineering, Technical University of Denmark, Denmark)
S. D. Pedersen (DTU Mechanical Engineering, Technical University of Denmark, Denmark)
E. C. M. Hølmkjær (DTU Mechanical Engineering, Technical University of Denmark, Denmark)
J. R. Johannesen (DTU Mechanical Engineering, Technical University of Denmark, Denmark)
A. R. Christensen (DTU Mechanical Engineering, Technical University of Denmark, Denmark)
T. B. Andersen (DTU Mechanical Engineering, Technical University of Denmark, Denmark)
H. B. Juul-Nyholm (DTU Mechanical Engineering, Technical University of Denmark, Denmark)
Date: 2014-06-27     Track: Main     Session: 1

This project includes a scale experiment, a 3D analysis of the vortex system around the propeller blades, a Blade Element Momentum analysis, and estimates based on data for standard Wageningen propeller series. Furthermore, OSK Shiptech has agreed to model the experiment with CFD. The purpose is to determine the relationship between relative velocity and power generation through a combination of several models and compare the result to the estimates made by HP. The possibility of optimizing the efficiency through expansion of the blade pitch range will also be explored. The possible complications related to this project include the risk of cavitation and increased noise and vibration levels in the milling condition. It is not expected that any of these points will prove to cause major, unsolvable problems.