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A viscous vorticity model for predicting turbulent flow over a propeller
Citation Link: https://doi.org/10.15480/882.9361
Publikationstyp
Conference Paper
Date Issued
2024-04-04
Sprache
English
Author(s)
Ocean Engineering Group, Department of Civil, Architectural and Environmental Engineering The University of Texas at Austin, Austin, Texas 78712, USA
Ocean Engineering Group, Department of Civil, Architectural and Environmental Engineering The University of Texas at Austin, Austin, Texas 78712, USA
TORE-DOI
Start Page
145
End Page
154
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
This paper extends the 3-D VIScous Vorticity Equation (VISVE) solver, originally designed for laminar flows, to address turbulence. By incorporating a 푘 − 휔 SST turbulence model via the Finite Volume Method (FVM), the study aims to develop an efficient tool for analyzing propellers under realistic, turbulent conditions. The developed turbulent VISVE solver was applied to a 3-D NSRDC 4381 propeller with 5 blades. The VISVE method, with its spatially concentrated vorticity, allows for a highly efficient computational approach, significantly reducing computation time. The developed numerical model was validated with a Reynolds-Averaged Navier-Stokes (RANS) solver. Comparative analyses reveal substantial alterations in velocity and vorticity distributions between laminar and turbulent cases. Turbulence introduces complex flow patterns and thinner boundary layers, which the 푘 − 휔 SST turbulence model captures. The extension of the VISVE method enhances predictions of propeller performance under realworld operating conditions. This study emphasizes the importance of considering turbulence in propeller analysis and design, providing a computational tool for this problem.
Subjects
Viscous Vorticity Equation
Turbulence Modeling
Propeller
3-D
Turbulent flow
DDC Class
620: Engineering
Publication version
publishedVersion
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Name
You-AViscousVorticityModelForPredictingTurbulentFlowOverAPropeller-1187-1-final.pdf
Type
Main Article
Size
125.93 MB
Format
Adobe PDF