Butsuri
Online ISSN : 2423-8872
Print ISSN : 0029-0181
ISSN-L : 0029-0181
Shear-induced Destabilization of Homogeneous Simple Liquids(Current Topics)
Akira FurukawaHajime Tanaka
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JOURNALS OPEN ACCESS

2010 Volume 65 Issue 6 Pages 432-436

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Abstract

It has been widely believed on the basis of fluid dynamics that we may ignore the density change in a liquid, or assume incompressibility, for slow simple shear deformation where inertia effects can be neglected. Contrary to this common belief, we recently found that an intrinsic coupling between flow and density fluctuations via the density dependence of shear viscosity can induce the enhancement of density fluctuations (implying a violation of the incompressibility condition) and destabilize the homogeneous state of a liquid even under simple shear flow. Here we discuss the universality and implications of this novel physical mechanism.

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© 2010 The Physical Society of Japan
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