振荡扑翼流场能量采集研究进展  

Review on Research of Flapping Foil for Power Generation From Flow Energy

作　　者：谢永慧[1] 姜伟[1] 吕坤[1] 张荻[1] 

机构地区：[1]西安交通大学能源与动力工程学院,陕西省西安市710049

出　　处：《中国电机工程学报》2016年第20期5564-5574,5733,共11页Proceedings of the CSEE

摘　　要：振荡扑翼现象广泛存在于自然界和工程实际中,在风能和水流能量采集输出方面有巨大的应用潜力,揭示振荡扑翼能量采集机理,获得提高振荡扑翼输出功率和效率的方法对于新型振荡扑翼流场能量采集装置的开发应用至关重要。文中介绍了振荡扑翼能量采集基本理论及其机制,运动参数对振荡扑翼流场结构和气动力的演变以及能量采集效果的影响规律;然后重点介绍了扑翼形状、柔性扑翼、非正弦振型、新型振型、多排扑翼和流固耦合等因素对振荡扑翼能量采集效果的影响规律;最后展示了振荡扑翼能量采集装备的工程开发现状。有关振荡扑翼能量采集的研究虽然取得一定进展,但尚需要更深入的试验和数值研究,文中指出:对扑翼形状、柔性扑翼和新型振型等的研究和优化分析可以有效提高振荡扑翼输出功率,但目前的研究较为有限;对扑翼非正弦振型的数值研究较为深入,但还缺乏相应的实验验证和分析;对双排或多排扑翼的研究涉及到扑翼运动参数、相邻扑翼间的运动相位差和前排尾流涡与后排扑翼间气动耦合作用等复杂因素,目前的研究尚不够系统深入。进一步采用三维数值分析方法和开展相应的实验对振荡扑翼能量采集过程中的流固耦合效应进行研究,可以更加精确地分析振荡扑翼周围流场的三维流动效应和功率输出过程。The phenomenon of flapping airfoils exists widely in nature and practical engineering, and it has great applicative potentials in power generation from wind energy and water flow energy. For the development of power generators using flapping foil, it is necessary to study the energy extraction mechanism and the methods for power generation enhancement. The fundamental theories and mechanism of flapping foils for power generation, and the influence of kinetic parameters on flow structure and aerodynamic force evolutions as well as power generation performance were introduced. Then the studies on the effects of foil shape, flexible foil, nonsinusoidal flapping profile, new types of flapping motions, foils in tandem formation and fluid-structure interaction on the energy extraction performance of flapping foils were explored. Finally, the development of equipments for flapping foil power generators was summarized. Although the research on the flapping foil power generator has made some progress, more detailed and systematic numerical and experimental investigations on following topics are urgently needed. The studies on the effects of foil shape, flexible foil and new types of flapping motions and the optimization work can effectively improve the output power, but the related studies are limited. Many numerical researches have been done on nonsinusoidal flapping profile, but the related experimental studies are quite limited. For the flapping foils in tandem formation, the effects of kinetic parameters, phase difference between neighboring foils and the aerodynamic coupling between the downstream foil and the wake from upstream are quite complex, and much research are still urgently needed. For the fluid-structure interaction effect of flapping foil in power generation regime, investigations on three dimensional numerical analysis and experimental studies are quite limited, which can more accurately analyze the three dimensional effect and the power generation process.

关 键 词：振荡扑翼 能量采集 运动参数 扑翼形状 柔性扑翼 新型振型 流固耦合效应 

分 类 号：TK89[动力工程及工程热物理—流体机械及工程]