Excitation of regular convective motions in liquids and liquid crystals by an acoustic wave

被引：0
|
作者：
A. K. Minasyan
M. R. Hakobyan
R. S. Hakobyan
机构：
[1] Yerevan State University,
来源：
Journal of Contemporary Physics (Armenian Academy of Sciences) | 2011年 / 46卷
关键词：
liquid; liquid crystal; acoustic wave; radiative pressure; convective motion;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A possibility of exciting steady convective motions in isotropic and anisotropic liquids under the action of a force produced by the radiation pressure of an acoustic wave with a spatially periodic transverse intensity distribution is investigated theoretically and experimentally. Cells both with two rigid boundaries and with one free surface are studied. The flows lead to reorientation of the director of liquid crystal in the case of anisotropic liquid. As a result, it acquires a periodic distribution in the transverse plane. The phenomenon can be utilized for the imaging of acoustic fields of microwatt power.
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页码：26 / 33
页数：7
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