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28 September 2022 Hydrodynamic performances study of a V-typed multi-slit trawl-door with different wing shapes
Lei Wang, Rong Wan, Yongli Liu, Lumin Wang, Xun Zhang, Wenbin Zhu, Chunlei Feng, Rongjun Zhang
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Proceedings Volume 12339, Second International Conference on Cloud Computing and Mechatronic Engineering (I3CME 2022); 1233908 (2022) https://doi.org/10.1117/12.2654862
Event: Second International Conference on Cloud Computing and Mechatronic Engineering (I3CME 2022), 2022, Chendu, China
Abstract
A V-typed multi-slotted trawl-doors was designed for the bottom trawl fishery, and its hydrodynamic performances was investigated in a wind tunnel. Two different kinds of model with right trapezoid and isosceles trapezoid wings were tested on six-component force balance with the wind speed of 28m/s. Data for measuring the performance of trawl-door included: lift coefficient Cy, drag coefficient Cx, centre of pressure coefficient Cp, pitch moment coefficient Cm. Analysing results showed that the maximum lift to drag ratio of the trawl-doors with the isosceles wings was higher (3.482 at α =22.5°), and the maximum lift coefficient of the trawl-doors model with the right trapezoid wings was higher (2.099 at α =55°). The comparative analysis of pitch moment coefficient showed that the pitch stability of model with the right trapezoid wings is better, the comparative analysis of centre of pressure coefficient showed that the rolling stability of model with the isosceles trapezoid wings is better.
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Citation Download Citation
Lei Wang, Rong Wan, Yongli Liu, Lumin Wang, Xun Zhang, Wenbin Zhu, Chunlei Feng, and Rongjun Zhang "Hydrodynamic performances study of a V-typed multi-slit trawl-door with different wing shapes", Proc. SPIE 12339, Second International Conference on Cloud Computing and Mechatronic Engineering (I3CME 2022), 1233908 (28 September 2022); https://doi.org/10.1117/12.2654862
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KEYWORDS
Data modeling
Oceanography
Resistance
Engineering
Fluid dynamics
Hydrodynamic cavitation
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