DIRECT MEASUREMENT OF HYDRODYNAMIC FLUCTUATIONS IN A BINARY MIXTURE

被引:18
|
作者
QUENTIN, G
REHBERG, I
机构
[1] Institut für Experimentelle Physik, Otto Von Guericke Universität, D-39016 Magdeburg
关键词
D O I
10.1103/PhysRevLett.74.1578
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In a binary mixture of water and ethanol, convection sets in in the form of traveling waves. Fluctuating patterns are observed below the convection threshold and interpreted as the result of thermal fluctuations. The study presented here is the first to identify these fluctuations below the convective instability, and, in particular, a recently predicted crossover in the divergence of the intensity of fluctuating traveling waves is observed for the first time. © 1995 The American Physical Society.
引用
收藏
页码:1578 / 1581
页数:4
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