Drift of an Inextensible Sheet Caused by Surface Waves
Drift of an Inextensible Sheet Caused by Surface Waves
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表面波引起的不可延伸板材的漂移
DOI：
10.1007/s10652-005-1052-8
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
J. Weber
中科院分区：
文献类型：
--
作者：
K. Christensen;J. Weber
不可伸展的薄膜通常用于模拟在海上常见的表面活性材料。重要的是要了解波浪引起的表面活性剂迁移的机制，例如沿海地区的石油泄漏。在本文中，我们比较理论的基础上，拉格朗日描述的运动，在受控的实验室实验中观察到的波引起的漂移薄不可扩展的塑料片。结果发现，解析解是能够重现所观察到的漂移。在实验室条件下，连续产生空间阻尼波，漂移速度随时间增加。因此，早期的理论处理，其中一个稳定的状态是假定预测太低的漂移速度值。需要的数据的时间发展的漂移指出。
Inextensible films are often used to simulate surface-active material as commonly found at sea. It is important to understand the mechanism behind wave-induced transport of surfactants with regard to e.g. oil spills in coastal areas. In this paper we compare theory, based on a Lagrangian description of motion, with observations of the wave-induced drift of thin inextensible plastic sheets in a controlled laboratory experiment. It is found that the analytical solution is able to reproduce the observed drift. In a laboratory situation with continuously generated, spatially damped waves, the drift velocity increases in time. Hence earlier theoretical treatments in which a steady state is assumed predict too low values of the drift velocity. The need for data on the time development of the drift is pointed out.