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Lookup NU author(s): Professor Pengfei LiuORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
This numerical study investigated the influence of the heave plate's diameter on the amplitude of the transitional motions of a marine circular cylinder (MCC) with a low aspect ratio under the marine current and regular waves. Due to the experimental model of the straked MCC, different diameters of the circular heave plate were chosen to be installed at the keel of the 3-straked MCC. In this numerical study, the diameter of the heave plate varied from 1.2 to 1.6 DMCC, while other parameters, such as reduced velocity (VR), Reynolds (Re) number, and Froude number, were kept constant. In this study, the transitional motions, including surge, sway, and heave, were analyzed. The results showed that increasing the heave plate's diameter decreased the amplitude of the transitional motions in both marine current and regular waves. Also, the finding revealed that the heave plate not only reduced the amplitude of the heave motion but also decreased the amplitude of surge and sway motions. Moreover, the outcomes indicated that the heave plate's diameter increased by approximately 20%–40% more than the MCC's diameter. This caused the smaller amplitude of the transitional motions under both marine currents and regular waves.
Author(s): Sharif MB, Ghassemi H, He G, Liu P
Publication type: Article
Publication status: Published
Journal: Physics of Fluids
Year: 2024
Volume: 36
Online publication date: 22/03/2024
Acceptance date: 10/03/2024
Date deposited: 25/03/2024
ISSN (print): 1070-6631
ISSN (electronic): 1089-7666
Publisher: AIP Publishing LLC
URL: https://doi.org/10.1063/5.0187222
DOI: 10.1063/5.0187222
ePrints DOI: 10.57711/hxj3-nw04
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