arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1302.2097cond-mat.softphysics.flu-dyn
收藏

流动诱导悬垂

Flow-Induced Draping

Lionel Schouveiler, Christophe Eloy

摘要:

皱巴巴的纸或窗帘图案是弹性片材如何响应外部压力的日常例子。在这封信中,我们通过实验研究了一种新的强迫。本文考虑中心固支的圆形柔性板,并受垂直于其初始表面的均匀流的作用。随着流速的逐渐增加,板表现出丰富多样的弯曲变形:从一个圆柱形的玉米卷状的形状,等距可展锥与方位角周期2或3,最终卷起周期3锥。我们表明,这一序列的流动引起的变形可以定性预测的弹性能量和压力之间的平衡工作的基础上的线性分析。

英文摘要:

Crumpled paper or drapery patterns are everyday examples of how elastic sheets can respond to external forcing. In this Letter, we study experimentally a novel sort of forcing. We consider a circular flexible plate clamped at its center and subject to a uniform flow normal to its initial surface. As the flow velocity is gradually increased, the plate exhibits a rich variety of bending deformations: from a cylindrical taco-like shape, to isometric developable cones with azimuthal periodicity two or three, to eventually a rolled-up period-three cone. We show that this sequence of flow-induced deformations can be qualitatively predicted by a linear analysis based on the balance between elastic energy and pressure force work.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑