Comment on "Shear-induced quench of long-range correlations in a liquid mixture"



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Ortiz de Zárate Leira, José María and Sengers, Jan V. (2006) Comment on "Shear-induced quench of long-range correlations in a liquid mixture". Physical Review E, 73 (1). ISSN 1539-3755

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Recently, Wada [Phys. Rev. E 69, 031202 (2004)] presented an analysis of the long-range nature of concentration fluctuations in a binary liquid mixture subjected to a concentration gradient in a uniform shear flow as a function of the wave number k of the fluctuations. Specifically, he argued that the presence of a uniform shear causes the intensity of the concentration fluctuations to crossover from the well-known k(-4) dependence at large wave numbers to a k(-4/3) dependence for small wave numbers. The purpose of this comment is to point out that the wave-number dependence of the concentration fluctuations to be expected in realistic experimental conditions will be affected by gravity and finite-size effects.

Item Type:Article
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©2006 The American Physical Society.

Uncontrolled Keywords:Nonequilibrium Fluctuations, Equilibrium, Fluid
Subjects:Sciences > Physics > Thermodynamics
ID Code:27338
Deposited On:17 Nov 2014 13:52
Last Modified:20 Nov 2014 09:41

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