柔性板下落
Falling Flexible Sheets
摘要:
我们提出了一个流体动力学的视频显示在一个无粘流体的柔性体下降的模拟。根据库塔条件,涡面从物体的后缘脱落。基本的行为是一系列的重复加速到一个临界速度,在这个临界速度下,片层膨胀,并迅速减速,脱落大的旋涡。持续盘旋,准周期性扑动,和更复杂的轨迹的例子。
英文摘要:
We present a fluid dynamics video showing simulations of flexible bodies falling in an inviscid fluid. Vortex sheets are shed from the trailing edges of the bodies according to the Kutta condition. The basic behavior is a repeated series of accelerations to a critical speed at which the sheet buckles, and rapidly decelerates, shedding large vortices. Examples of persistent circling, quasi-periodic flapping, and more complex trajectories are shown.
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