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Numerical investigation of the influence of the axial position of the propeller on the propulsion performance and the hull-propeller interaction using the body-force-method
Publikationstyp
Conference Paper
Date Issued
2023
Sprache
English
Author(s)
Akinmulewo, Daniel
Grashorn, Henning
First published in
Number in series
7
Volume
7
Start Page
253
End Page
264
Citation
13th Symposium on High Speed Marine Vehicles (Hsmv 2023)
Contribution to Conference
Publisher DOI
Scopus ID
Publisher
IOS Press
ISBN
978-1-64368-442-0
978-1-64368-443-7
The growing demand to reduce emissions and the increasing awareness of the negative environmental impact of ships and high-speed marine vessels have influenced the traditional methods employed in the design of ship propulsion systems. In this context, more emphasis has been placed on the design of ship propellers and determining the optimum axial position, while operating in the ship wake-field. The interaction parameters between the hull and propeller, mainly the wake fraction coefficient and thrust deduction factor, are required to determine the optimum propeller position for improved fuel and overall propulsive efficiency. For this purpose, a numerical analysis is performed to assess the influence of the axial position of the propeller on the propulsion performance and the hull-propeller interaction using the integration of three software: a propeller design and optimisation framework within the CAESES environment for a parametric variation of the propeller geometry, a CFD code FreSCo+, a joint development from the Hamburg Ship Model Basin (HSVA) and Hamburg University of Technology (TUHH) to perform the hydrodynamic evaluation of the hull and a propeller potential solver QCM (HSVA in house code). The coupling of the above procedure is applied to four axial positions of the propeller in calm water conditions without considering cavitation aspects to evaluate propeller-induced forces and hull-propeller interaction coefficients. Simulations are performed on a model-scale container ship and validated with the experimental results from HSVA.
Subjects
Axial positions
Computational Fluid Dynamics (CFD)
Computer Aided Engineering software CAESES
propeller-hull interaction
self-propulsion
DDC Class
004: Computer Sciences
530: Physics
620: Engineering