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Flow vibration characteristics of rotating slender body structure in water flow
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Xin-ge GENG1a, Wei-guo WU1b, Wei CHEN1c, Kai LIU2, Guo-qiang TANG3, Yong-shui LIN1a, Cui-na ZHAO4
Journal of Ship Mechanics | 2025, 29(11) : 1722 - 1733
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Journal of Ship Mechanics | 2025, 29(11): 1722-1733
• Hydrodynamics •
Flow vibration characteristics of rotating slender body structure in water flow
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Xin-ge GENG1a, Wei-guo WU1b, Wei CHEN1c, Kai LIU2, Guo-qiang TANG3, Yong-shui LIN1a, Cui-na ZHAO4
Affiliations
  • 1a.School of Science, Wuhan University of Technology, Wuhan 430063, China
  • 1b.Green & Smart River-Sea-Going Ship Cruise and Yacht Research Center, Wuhan University of Technology, Wuhan 430063, China
  • 1c.School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, China
  • 2.China Ship Scientific Research Center, Wuxi 214082, China
  • 3.State Key Laboratory of Coastal and Offshore engineering, Dalian University of Technology, Dalian 116023, China
  • 4.China Ship Development and Design Center, Wuhan 430064, China
doi: 10.3969/j.issn.1007-7294.2025.11.006
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Based on the slicing theory, a time domain model of flow-induced vibration of 3D rotating slender structure is established by combining computational Fluid dynamics (CFD) and finite element method, and the flow vibration characteristics under the action of water flow and rotation are studied. Under the action of water flow, the trajectory of non-rotating elongated structure is mainly "8" shaped. Under the combined effects of flow and rotation, the motion direction of rotating slender body is opposite to its rotation direction, resulting in backward whirling. When the flow velocity is 0.46 m/s, vibration is jointly influenced by the flow and rotation. As the rotational frequency increases, the trajectory of the rotating elongated body transitioned gradually from a "8" shape to a circle. When the flow velocity is 1.02 m/s, the frequency is close to the theoretical intrinsic frequency, and the main cause of vibration is Vortex-Induced Vibration (VIV). The vortex motion is completely suppressed. There is a frequency-locking interval near the intrinsic frequency of the cylinder. The relative amplitude of the transverse vibration of the rotating cylinder increases with the flow velocity in the locking interval, while the frequency ratio remains unchanged.

slicing theory  /  cortea shedding  /  rotation frequency  /  vibration characteristics
Xin-ge GENG, Wei-guo WU, Wei CHEN, Kai LIU, Guo-qiang TANG, Yong-shui LIN, Cui-na ZHAO. Flow vibration characteristics of rotating slender body structure in water flow[J]. Journal of Ship Mechanics, 2025 , 29 (11) : 1722 -1733 . DOI: 10.3969/j.issn.1007-7294.2025.11.006
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Year 2025 volume 29 Issue 11
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Article Info
doi: 10.3969/j.issn.1007-7294.2025.11.006
  • Receive Date：2025-04-20
  • Online Date：2026-03-18
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  • Received：2025-04-20
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Affiliations
    1a.School of Science, Wuhan University of Technology, Wuhan 430063, China
    1b.Green & Smart River-Sea-Going Ship Cruise and Yacht Research Center, Wuhan University of Technology, Wuhan 430063, China
    1c.School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, China
    2.China Ship Scientific Research Center, Wuxi 214082, China
    3.State Key Laboratory of Coastal and Offshore engineering, Dalian University of Technology, Dalian 116023, China
    4.China Ship Development and Design Center, Wuhan 430064, China
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表12种不同金属材料的力学参数
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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