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A BEMT body-force method based on improved induct factor calculation method
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Ming-zhe WANGa, b, Jian-hua WANGa, b, De-cheng WANa, b
Journal of Ship Mechanics | 2024, 28(1) : 1 - 9
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Journal of Ship Mechanics | 2024, 28(1): 1-9
• Hydrodynamics •
A BEMT body-force method based on improved induct factor calculation method
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Ming-zhe WANGa, b, Jian-hua WANGa, b, De-cheng WANa, b
Affiliations
  • a.Computational Marine Hydrodynamics Lab (CMHL), Shanghai Jiao Tong University, Shanghai 200240, China
  • b.School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Published: 2024-01-20 doi: 10.3969/j.issn.1007-7294.2024.01.001
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As a kind of body-force model capable of replacing real propellers, the Blade Element Momentum Theory (BEMT) has a great application potential in simulating propeller performance and hull-propeller interaction. In order to deal with the problem that the traditional BEMT based on the ideal fluid hypothesis cannot accurately represent the real propeller model in a wide range of working conditions when coupling with the viscosity solver, an improved induct factor calculation method based on the real propeller was proposed in this paper. Open-water simulation of KP505 propeller body-force model at J=0.4-0.8 was carried out, and the simulation results of the body-force model, such as open-water performance, propeller load distribution and induced velocity field, were compared with those of the real propeller model. The results show that the maximum error of open water performance is 1.05% at each advance ratio, and the induced velocity field of the improved body-force model can reflect the wake momentum transport of the real propeller.

inducing factor  /  BEMT  /  body-force model  /  open-water test  /  numerical simulation
Ming-zhe WANG, Jian-hua WANG, De-cheng WAN. A BEMT body-force method based on improved induct factor calculation method[J]. Journal of Ship Mechanics, 2024 , 28 (1) : 1 -9 . DOI: 10.3969/j.issn.1007-7294.2024.01.001
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Year 2024 volume 28 Issue 1
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Article Info
doi: 10.3969/j.issn.1007-7294.2024.01.001
  • Receive Date：2023-07-14
  • Online Date：2026-03-21
  • Published：2024-01-20
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  • Received：2023-07-14
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Affiliations
    a.Computational Marine Hydrodynamics Lab (CMHL), Shanghai Jiao Tong University, Shanghai 200240, China
    b.School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, 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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