Penglei Ma, Xianzhuo Shen, Bowen Qiao, Cheng Ye, Yingchun Xie, Guijie Liu
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Study on the mechanism of flexible deformation affecting the hydrodynamic performance of oscillating hydrofoil
The declining natural environment and rising energy demand have led to increased interest in oscillating hydrofoil structures for their high energy extraction efficiency and environmental benefits. In this study, the numerical simulation method is used to study the mechanism of flexible deformation affecting the hydrodynamic performance of hydrofoil. The results show that the flexible deformation can increase the average power coefficient (CP) by increasing the lift, but it will also aggravate the dynamic stall of the hydrofoil, which has many effects on the hydrodynamic performance of the hydrofoil. Then, the double flexible hydrofoil structure coupled with flexible deformation and dynamic wing-in-ground effect is studied, its hydrodynamic performance is obviously better than other types of hydrofoils. the average power coefficient is 2.51 % higher than that of single flexible hydrofoil and 25.03 % higher than that of double rigid hydrofoil. This shows the superiority of the double flexible hydrofoil structure.
期刊介绍:
Ocean Engineering provides a medium for the publication of original research and development work in the field of ocean engineering. Ocean Engineering seeks papers in the following topics.