新型拍动翼仿生推进性能
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摘要
采用重叠网格技术对采取非正弦曲线运动的拍动翼的推进效率进行数值模拟研究。系统地分析β值、俯仰运动幅值和特哈尔数对拍动翼推进效率的影响,并将非正弦曲线运动的拍动翼推进结果与标准正弦曲线运动的拍动翼推进结果相对比,为后续仿生潜器的设计提供技术依据和理论指导。数值模拟结果表明,β值对拍动翼的推进性能具有重要影响。
The numerical simulation of the non-sinusoidal flapping foil propulsion is performed with overlapping grid method to investigate the propulsive efficiency.The influences of motion parameters andβvalues on the propulsive performance are systematically investigated.The results are compared with those of typical sinusoidal flapping foil designs.It is proved thatβvalues are of the vital factors to the propulsive performance of flapping foil.
The numerical simulation of the non-sinusoidal flapping foil propulsion is performed with overlapping grid method to investigate the propulsive efficiency.The influences of motion parameters andβvalues on the propulsive performance are systematically investigated.The results are compared with those of typical sinusoidal flapping foil designs.It is proved thatβvalues are of the vital factors to the propulsive performance of flapping foil.
引文
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[2]LI Y C,PAN D Y,ZHAO Q S,et al.Hydrodynamic Performance of an Autonomous Underwater Glider with a Pair of Bioinspired Hydro Wings-a Numerical Investigatio[J].Ocean Engineering,2018,163:51-57.
[3]PEDRO G,SULEMAN A,DJILALI N.A Numerical Study of the Propulsive Efficiency of a Flapping Hydrofoil[J].International Journal for Numerical Methods in Fluids,2003,42(5):493-526.
[4]童秉纲,孙茂,尹协振.飞行和游动生物流体力学的国内研究进展概述[J].自然杂志,2005,27(4):191-198.
[5]SHAO X M,PAN D Y,DENG J,et al.Numerical Studies on the Propulsion and Wake Structure of Finite-Span Flapping Wings with Different Aspect Ratios[J].Journal of Hydrodynamics,2010,22(2):147-154.
[6]SHAO X M,PAN D Y,DENG J,et al.Hydrodynamic Performance of a Fishlike Undulating Foil in the Wake of a Cylinder[J].Physics of Fluids,2010,22(11):111903.
[7]WU J,QIU C,ZHAO S.Pitching-Motion-Activated Flapping foil Near Solid Walls for Power Extraction:A Numerical Investigation[J].Physics of Fluids,2014,26(8):083601.
[8]MA ZH,LI Y C.Numerical Investigation on the Side Wall Effect of Flapping Foil[C]//13th International Conference on Hydrodynamics,2018.
[9]李永成,王健,赵桥生,等.低雷诺数下拍动翼仿生推进效率研究[J].水动力学研究与进展,2018,33(4):455-460.
[10]李永成,徐令令,赵桥生,等.基于重叠网格理论的拍动翼推进特性研究[J].船舶与海洋工程,2018,34(2):16-20.
[11]潘定一,邓见,邵雪明.基于沉浸边界法的二维拍动翼数值模拟[J].空气动力学学报,2008,26(4):419-424.