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Numerical and experimental study of a series of contrarotating propellers
Citation Link: https://doi.org/10.15480/882.9322
Publikationstyp
Conference Paper
Date Issued
2024-04-04
Sprache
English
Author(s)
Brunvoll, Norway
Norwegian Marine Technology Research Institute (SINTEF Ocean), Trondheim, Norway
Norwegian Marine Technology Research Institute (SINTEF Ocean), Trondheim, Norway
Norwegian Marine Technology Research Institute (SINTEF Ocean), Trondheim, Norway
SVA, Potsdam Model Basin, Potsdam, Germany
SVA, Potsdam Model Basin, Potsdam, Germany
TORE-DOI
Start Page
625
End Page
637
Citation
8th International Symposium on Marine Propulsors (smp 2024)
Contribution to Conference
Publisher
Norwegian University of Science and Technology, Department of Marine Technology
ISBN
978-82-691120-5-4
Peer Reviewed
true
The authors conducted development and analyses of a new series of contrarotating propellers (CRP) as part of a research project funded partly by the Norwegian Research Council and led by the propeller manufacturer Brunvoll. The paper describes the initial investigation for choosing the design matrix, method used for the design of the propeller geometries, potential and CFD based numerical analyses, and open water as well as cavitation model experimental investigations.
The main idea behind this new series is to utilize the capability that rate of revolution of the fore and aft propellers can be adjusted independently providing more operational flexibility and better overall efficiency over a wide range of operational conditions. Initial designs were performed using a numerical tool based on potential flow; however, some designs were refined based on analyses performed using CFD. A set of propellers were tested both at SINTEF Ocean and SVA Potsdam. The paper presents the methodology used for the design as well as numerical and experimental investigation of this series. Results are provided graphically. Comparison between results from different numerical methods and the model tests are shown and possible deviations are discussed.
The main idea behind this new series is to utilize the capability that rate of revolution of the fore and aft propellers can be adjusted independently providing more operational flexibility and better overall efficiency over a wide range of operational conditions. Initial designs were performed using a numerical tool based on potential flow; however, some designs were refined based on analyses performed using CFD. A set of propellers were tested both at SINTEF Ocean and SVA Potsdam. The paper presents the methodology used for the design as well as numerical and experimental investigation of this series. Results are provided graphically. Comparison between results from different numerical methods and the model tests are shown and possible deviations are discussed.
Subjects
Contrarotating propellers
potential methods
CFD
model tests
DDC Class
620: Engineering
Publication version
publishedVersion
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Name
Johannessen-NumericalAndExperimentalStudyOfASeriesOfContrarotatingPropellers-1134-1-final.pdf
Type
Main Article
Size
2.32 MB
Format
Adobe PDF