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Research of LSPIV-based surface flow image velocimetry method for the channel waters near the Jianghan Bridge
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Fangliang XIAO1, 2, 3, Wenyu XIAO1, Xingsheng ZHANG1
Navigation of China | 2025, 48(4) : 78 - 83
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Navigation of China | 2025, 48(4): 78-83
• Communication and Navigation •
Research of LSPIV-based surface flow image velocimetry method for the channel waters near the Jianghan Bridge
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Fangliang XIAO1, 2, 3, Wenyu XIAO1, Xingsheng ZHANG1
Affiliations
  • 1.School of Navigation, Wuhan University of Technology, Wuhan 430063, China
  • 2.Hubei Key Laboratory of Inland Shipping Technology, Wuhan University of Technology, Wuhan 430063, China
  • 3.Xiangyang Sub-Center of National Engineering Research Center for Water Transport Safety, Hubei University of Arts and Science, Xiangyang 441053, China
Published: 2025-12-25 doi: 10.3969/j.issn.1000-4653.2025.04.009
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Currently, ship navigators can assess flow patterns using basic instruments and adjust maneuvering strategies accordingly. Access to detailed flow field data of a waterway can provide valuable information and early warnings for ships transiting the area. This study analyzes surface flow in the waters near Jianghan Bridge, captured by video. By employing Large-Scale Particle Image Velocimetry (LSPIV), a method is developed to measure surface flow velocity in the navigation channel, enabling analysis of surface flow characteristics and acquisition of surface flow field data. The obtained flow field data are validated through comparison with optical flow methods and Acoustic Doppler Velocimetry. Results demonstrate that the proposed surface flow velocity measurement method can effectively capture detailed flow pattern characteristics of surface currents in the study area. This approach provides data support for navigation and path planning of both conventional ships and smart ships utilizing big data, contributing practical value to the enhancement of maritime safety and operational efficiency.

LSPIV  /  surface flow image velocimetry  /  water flow field
Fangliang XIAO, Wenyu XIAO, Xingsheng ZHANG. Research of LSPIV-based surface flow image velocimetry method for the channel waters near the Jianghan Bridge[J]. Navigation of China, 2025 , 48 (4) : 78 -83 . DOI: 10.3969/j.issn.1000-4653.2025.04.009
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Article Info
doi: 10.3969/j.issn.1000-4653.2025.04.009
  • Receive Date：2024-10-22
  • Online Date：2026-03-17
  • Published：2025-12-25
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  • Received：2024-10-22
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Affiliations
    1.School of Navigation, Wuhan University of Technology, Wuhan 430063, China
    2.Hubei Key Laboratory of Inland Shipping Technology, Wuhan University of Technology, Wuhan 430063, China
    3.Xiangyang Sub-Center of National Engineering Research Center for Water Transport Safety, Hubei University of Arts and Science, Xiangyang 441053, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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Genus		 种数
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Percentage of total
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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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