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首页> 外文期刊>International Journal of Heat and Fluid Flow >Flapping dynamics of inverted flags in a side-by-side arrangement
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Flapping dynamics of inverted flags in a side-by-side arrangement

机译：并排排列的倒置标志的拍动动态

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Two side-by-side inverted flags in a uniform flow were simulated using the immersed boundary method. An energy harvesting system consisting of the two inverted flags was analyzed, and the flapping motions of the flags were investigated with consideration for the flow-mediated interactions between them. The flapping motions of the flags were determined from the spanwise gap distance between the trailing edges of the two flags. In-phase and out-of-phase flapping motions were observed by varying the gap distance and the initial configuration. The relative spanwise displacement of the leading edge from the trailing edge, the strain energy, and the flapping frequency was examined as a function of the gap distance and the bending rigidity. The large peak-to-peak amplitude was induced by placing an additional inverted flag. The large mean strain energy was achieved due to the intensified flapping motions of each flag. The vortical structures produced by the inverted flags, along with the pressure and velocity distributions along the center line were explored for different gap distances.
机译：使用沉浸边界方法模拟均匀流动中的两个并排倒置标志。分析了由两个倒置标志组成的能量收集系统，并考虑了标志之间的流动介导相互作用，研究了标志的拍打运动。从两个标志的后沿之间的翼展方向间隙距离确定标志的拍打运动。通过改变间隙距离和初始配置，可以观察到同相和异相拍动。检查前缘相对于后缘的相对翼展方向位移，应变能和拍动频率，它们是间隙距离和抗弯刚度的函数。大的峰峰值幅度是通过放置一个附加的倒置标志引起的。由于每个标记的拍打运动增强，因此获得了较大的平均应变能。对于不同的间隙距离，探索了由倒置标志产生的涡旋结构以及沿中心线的压力和速度分布。

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