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Numerical study on the influence of superhydrophobicity on the fusion characteristics of ventilated cavitating flow on a flat plate
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Zheng-hong WU1, Chang-li HU1, Zhi-ying WANG2, Cheng CHENG1, Yue WU1
Journal of Ship Mechanics | 2026, 30(4) : 547 - 556
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Journal of Ship Mechanics | 2026, 30(4): 547-556
Hydrodynamics
Numerical study on the influence of superhydrophobicity on the fusion characteristics of ventilated cavitating flow on a flat plate
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Zheng-hong WU1, Chang-li HU1, Zhi-ying WANG2, Cheng CHENG1, Yue WU1
Affiliations
  • 1.School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
  • 2.Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
Published: 2026-04-15 doi: 10.3969/j.issn.1007-7294.2026.04.004
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In this paper, the large eddy simulation and level-set/volume-of-fluid (CLSVOF) coupled interface capture method is used to calculate the ventilated cavity flow of porous flat plate under two wall contact angles (90° and 160°), and the influence of wall superhydrophobicity on the development characteristics of ventilated cavity fusion of flat plate is studied. The results show that compared with the typical experimental results, the numerical calculation method can better simulate the shape of ventilated cavitation and the wall superhydrophobicity. Compared with the flat plate with a contact angle of 90°, it is found that the flat plate with a contact angle of 160° will have a near-wall velocity slip phenomenon, which will increase the spanwise velocity of the cavity and promote the fusion of the cavity, so that the position of the cavity fusion is advanced by 41%. The pressure fluctuation of the cavity after fusion is smaller, and the resistance of the plate with a contact angle of 160° is smaller than that of the plate with a contact angle of 90°.

ventilated cavitation  /  cavitation fusion  /  contact angle
Zheng-hong WU, Chang-li HU, Zhi-ying WANG, Cheng CHENG, Yue WU. Numerical study on the influence of superhydrophobicity on the fusion characteristics of ventilated cavitating flow on a flat plate[J]. Journal of Ship Mechanics, 2026 , 30 (4) : 547 -556 . DOI: 10.3969/j.issn.1007-7294.2026.04.004
Year 2026 volume 30 Issue 4
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doi: 10.3969/j.issn.1007-7294.2026.04.004
  • Receive Date:2025-08-10
  • Online Date:2026-07-07
  • Published:2026-04-15
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  • Received:2025-08-10
Affiliations
    1.School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
    2.Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
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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