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Excess dissipation in dense emulsions

Ramaswamy, S (1997) Excess dissipation in dense emulsions. [Book Chapter]

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A new model for the structure, elastic properties and dynamics of foams and concentrated emulsions is presented, based on the idea of local regions lacking shear-rigidity in one or more directions which vary randomly through the medium. It is shown to lead naturally to slow (t(-1/2)) stress-relaxation, implying a piece of the dynamic modulus scaling with frequency omega as omega(1/2). Striking experimental confirmation of this prediction using a novel experimental technique is reported, and challenges for the theoretician are offered. This work was done in collaboration with Andrea Liu, Tom Mason, Hu Gang, and David Weitz [1].

Item Type: Book Chapter
Series.: Nato advanced science institutes series, series e, applied sciences
Publisher: Kluwer Academic Publishers
Additional Information: Copyright of this article belongs to Kluwer Academic Publishers.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 15 Mar 2012 07:39
Last Modified: 15 Mar 2012 07:39
URI: http://eprints.iisc.ac.in/id/eprint/43984

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