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Ruixuan He, Xinjing Wang, Jian Li, Xiaodong Liu and Baowei Song
Recently, inspired by the flippers of humpback whales, researchers have been widely studying leading-edge tubercles for use as passive flow control devices. In this research, we numerically investigated the effects of leading-edge tubercles on a three-di...
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Xinyu Lang, Bifeng Song, Wenqing Yang, Xiaojun Yang and Dong Xue
The wing planform and flapping kinematics are critical for the hovering flight of flapping wing micro air vehicles (FWMAVs). The degree of influence of wing geometry and kinematic parameters on aerodynamic performance still lacks in-depth analysis. In th...
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Yonghui Cao, Yingzhuo Cao, Shumin Ma, Xinhao Li, Yilin Qu and Yong Cao
Currently, the bionic robotic fish is primarily devoted to the bionic appearance of fish and rarely involves the bionic swimming posture. However, biological studies have proved that fish have extraordinary swimming ability, so it is necessary to imitate...
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Jae-Hung Han, Yu-Jeong Han, Hyeon-Ho Yang, Sang-Gil Lee and Eun-Hyuck Lee
This study focuses on the flapping mechanisms found in recently developed biometric flapping-wing air vehicles (FWAVs). FWAVs mimic the flight characteristics of flying animals, providing advantages such as maneuverability, inconspicuousness, and excelle...
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Xiancheng Gu, Linghua Dong, Tong Li and Weidong Yang
An active rotor with trailing-edge flaps (TEFs) is an effective active vibration control method for helicopters. Blade flapping dynamic characteristics have a significant effect on the active vibration control performance of an active rotor. In this stud...
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Lei Mei, Wenhui Yan, Junwei Zhou and Weichao Shi
Recent studies indicate that bow foil biomimetic systems can significantly improve ship propulsion in waves. In this paper, the DTMB 5415 ship model is taken as the object and a semi-active elastic flapping foil is proposed to install at its bow underwat...
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Yuanbo Dong, Bifeng Song, Wenqing Yang and Dong Xue
Due to the complexity of tailoring the wing flexibility and selecting favorable kinematics, the design of flapping wings is a considerably challenging problem. Therefore, there is an urgent need to investigate methods that can be used to design wings wit...
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Ziyu Wang, Zi Kan, Huadong Li, Daochun Li, Shiwei Zhao and Zhan Tu
By combining the flapping and rotary motion, a flapping wing rotor (FWR) shows unique kinematics of motion. It can produce a significantly higher aerodynamic efficiency and lift coefficient than insect-like flapping wings. However, due to the lack of con...
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Hongtao Yu and Zifeng Yang
A 2D numerical simulation was conducted to investigate the effect of an extended rigid trailing edge fringe with a flapping motion on the S833 airfoil and its wake flow field, as an analogy of an owl?s wing. This study aims to characterize the influence ...
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Junjie He, Yonghui Cao, Qiaogao Huang, Guang Pan, Xin Dong and Yong Cao
Oscillating pectoral fins? spanwise flexibility is a key factor influencing the forwarding propulsion performance of bionic cownose rays, including thrust and heave-pitch stability. This study explores the effects of the bionic pectoral fin ray?s spanwis...
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