论文标题
流动的肥皂膜中耦合刚性的系统的形状变形和阻力变化
Shape Deformation and Drag Variation of a Coupled Rigid-flexible System in a Flowing Soap Film
论文作者
论文摘要
我们通过实验性地研究了经过刚性板的流动，其附着的闭合丝在肥皂膜中充当可变形后的流量。研究了由于其可变形形状和相应的动力学而引起的复杂流体结构相互作用。我们发现毕生体的形状由细丝的长度和流速度确定。通过调整灯丝长度，可实现高达9.0％的大幅减少。我们通过表征可变形后体形和唤醒性能来分析阻力机制。我们的实验和建模表明，当适当添加灵活的后体时，预计这种有利的流量控制和拖动减少将在特定的流速方向上发生。
We experimentally study the flow past a rigid plate with an attached closed filament acting as a deformable afterbody in the soap film. The complex fluid-structure interactions due to its deformable shape and corresponding dynamics are studied. We find the shape of the afterbody is determined by the filament length and flow velocity. A significant drag reduction of up to 9.0% is achieved by adjusting the filament length. We analyze the drag mechanism by characterizing the deformable afterbody shape and wake properties. Our experiment and modeling suggest that such favorable flow control and drag reduction are expected to occur over a specific flow speed regime when the flexible afterbody is suitably added.
