Shear-induced transition to mean-field critical behavior

1 January 1979

journal article
Published by EDP Sciences in Journal de Physique Lettres

Vol. 40 (21) , 565-567
https://doi.org/10.1051/jphyslet:019790040021056500

Abstract

Light scattering was used to study the influence of a shear S on the critical fluctuations (lifetime τ) of a binary fluid (cyclohexane-aniline). For the first time we experimentally show that in the region Sτ > 1 (i) the critical temperature is actually changed ΔT c(S) ∝ S0.53±0.03 and (ii) the susceptibility measured in the flow direction crosses over to a mean-field behavior. These points confirm both the reduction and the anisotropy of the fluctuations induced by the shear

Keywords

CRITICAL PHENOMENA
LIGHT SCATTERING
ORGANIC COMPOUNDS
SHEAR FLOW
CRITICAL FLUCTUATIONS
BINARY FLUID
CRITICAL TEMPERATURE
SUSCEPTIBILITY
ANISOTROPY
MEAN FIELD CRITICAL BEHAVIOUR
SHEAR INDUCED TRANSITION
CYCLOHEXANE ANILINE MIXTURE

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