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Influences of considering hub effects on propeller lifting-surface design
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Bi-liang SHI1, 2, Yuan-hui LIU1, 2, Hua RUAN1, 2
Journal of Ship Mechanics | 2025, 29(4) : 528 - 534
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Journal of Ship Mechanics | 2025, 29(4): 528-534
• Hydrodynamics •
Influences of considering hub effects on propeller lifting-surface design
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Bi-liang SHI1, 2, Yuan-hui LIU1, 2, Hua RUAN1, 2
Affiliations
  • 1.China Ship Scientific Research Center, Wuxi 214082, China
  • 2.Taihu Laboratory of Deepsea Technological Science, Wuxi 214082, China
Published: 2025-04-20 doi: 10.3969/j.issn.1007-7294.2025.04.002
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The hub effects are usually ignored in the propeller lifting-surface design based on potential flow theory, the circulation of root is constrained to zero, and the hub is neglected when dealing with boundary value problems. Herein, the theoretical design method of propeller considering hub effects was established by coupling image method of two-dimensional flow problem with lifting-surface design method. Two propellers were designed for a ship by the methods with and without consideration of hub effects respectively, the geometrical shapes, hydrodynamic coefficients and pressure distributions of two propellers were compared. It is shown that hub effects in lifting-surface design has no obviously influences on hydrodynamic coefficients, but the pressure distributions of the propeller designed by the method considering hub effects is in better agreement with design goals. At the same time, considering hub effects could help to reduce loading of leading edge in external radius, that would be beneticial to postponing cavitation inception.

propeller design  /  lifting-surface method  /  hub  /  image method  /  leading-edge suction peak  /  cavitation
Bi-liang SHI, Yuan-hui LIU, Hua RUAN. Influences of considering hub effects on propeller lifting-surface design[J]. Journal of Ship Mechanics, 2025 , 29 (4) : 528 -534 . DOI: 10.3969/j.issn.1007-7294.2025.04.002
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Article Info
doi: 10.3969/j.issn.1007-7294.2025.04.002
  • Receive Date：2024-10-24
  • Online Date：2026-03-24
  • Published：2025-04-20
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  • Received：2024-10-24
Affiliations
    1.China Ship Scientific Research Center, Wuxi 214082, China
    2.Taihu Laboratory of Deepsea Technological Science, Wuxi 214082, China
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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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