Interaction of two fully passive flapping foils arranged in tandem and its influence on flow energy harvesting
Interaction of two fully passive flapping foils arranged in tandem and its influence on flow energy harvesting
复制标题
串联排列的两个完全被动扑翼的相互作用及其对流能收集的影响
DOI：
10.1016/j.energy.2023.126714
复制
发表时间：
2023-04
期刊：
影响因子：
9
通讯作者：
Hui Tang
中科院分区：
文献类型：
--
作者：
Fuwang Zhao;Qian Jiang;Zhaokun Wang;M.N. Mumtaz Qadri;Li Li;Hui Tang
我们研究了一种新型的流动能量收集系统的动力学和能量收集性能，该系统由两个串联布置的完全被动的扑翼组成。通过实验测试和数值模拟揭示了尾流与翼型以及翼型与翼型的相互作用机理。系统在弦基雷诺数为8.7 × 104的条件下进行了不同初始状态和串列距离的试验。结果发现，后翼受到前翼尾流的调制并最终被锁定，从而导致两翼之间的稳定相位差，该相位差与翼的初始状态无关，并随纵列距离几乎呈线性变化。在试验范围内，后翼总是表现出较大的升沉速度和俯仰速度，比前翼和单翼平均多提取15.2%的功率。当两个翼片仅相隔一个弦长时，后翼片获得了最佳的功率提取效率19.6%，而当两个翼片相隔两个弦长时，前翼片获得了最差的功率提取效率15.9%。总的来说，两个箔可以实现36.8%的最佳效率，大于两倍的值（即，33.4%）的单箔的效率。
We investigated the dynamics and energy harvesting performance of a novel flow-energy harvesting system that consists of two fully passive flapping foils arranged in tandem. Both experimental tests and numerical simulations were conducted to uncover the wake-foil and foil-foil interaction mechanism. The system was tested at a chord-based Reynolds number of 8.7 × 104with various initial states and tandem distances. It was found that the aft foil was modulated and eventually locked by the wake of the flapping fore foil, leading to a stable phase difference between the two foils that is independent of the foils' initial states and varies almost linearly with the tandem distance. Within the test range, the aft foil always exhibited larger heaving and pitch velocities, extracting in average 15.2% more power than the fore foil and the single foil. The best power extraction efficiency of 19.6% was achieved by the aft foil when the two foils are separated by only one chord length, while the worst efficiency of 15.9% was achieved by the fore foil when they are separated by two chord lengths. Collectively, the two foils can achieve the best efficiency of 36.8%, greater than the doubled value (i.e., 33.4%) of the single foil's efficiency.
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DOI：
10.2495/eq-v2-n1-95-105
发表时间：
2017
期刊：
--
影响因子：
--
作者：
Ferhat Karakas;Idil Fenercioglu
通讯作者：
Ferhat Karakas;Idil Fenercioglu
基于串联扑动水翼的水力涡轮机实验与数值研究
影响因子：
9
作者：
Xu Wenhua;Xu Guodong;Duan Wenyang;Song Zhijie;Lei Jie
通讯作者：
Lei Jie
DOI：
10.2514/6.2009-1211
发表时间：
2009-01
期刊：
--
影响因子：
--
作者：
M. Platzer;M. Ashraf;J. Young;J. Lai
通讯作者：
M. Platzer;M. Ashraf;J. Young;J. Lai
影响因子：
8.7
作者：
H. Karbasian;J. A. Esfahani;E. Barati
通讯作者：
H. Karbasian;J. A. Esfahani;E. Barati
影响因子：
2.7
作者：
B. L. R. Ribeiro;Yunxing Su;Quentin Guillaumin;K. Breuer;Jennifer A. Franck
通讯作者：
B. L. R. Ribeiro;Yunxing Su;Quentin Guillaumin;K. Breuer;Jennifer A. Franck