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Effect of convection on domain growth during demixing transitions in fluids

Kumaran, V (2002) Effect of convection on domain growth during demixing transitions in fluids. In: Phase Transitions: A Multinational Journal, 75 (4-5). pp. 339-352.

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Official URL: http://www.tandfonline.com/doi/abs/10.1080/0141159...


Current analytical work on the effect of convection on the late stages of spinodal decomposition in liquids is briefly described. The morphology formed during the spinodal decomposition process depends on the relative composition of the two species. Droplet spinodal decomposition occurs when the concentration of one of the species is small. Convective transport has a significant effect on the scaling laws in the late-stage coarsening of droplets in translational or shear flows. In addition, convective transport could result in an attractive interaction between non-Brownian droplets which could lead to coalescence. The effect of convective transport for the growth of random interfaces in a near-symmetric quench was analysed using an area distribution function, which gives the distribution of surface area of the interface in curvature space. It was found that the curvature of the interface decreases proportional to time t in the late stages of spinodal decomposition, and the surface area also decreases proportional to t.

Item Type: Journal Article
Publication: Phase Transitions: A Multinational Journal
Publisher: Taylor and Francis Group
Additional Information: Copyright of this article belongs to Taylor and Francis Group.
Keywords: Convection;Domain Growth;Binary Fluids
Department/Centre: Division of Mechanical Sciences > Chemical Engineering
Date Deposited: 20 Jul 2011 08:46
Last Modified: 20 Jul 2011 08:46
URI: http://eprints.iisc.ac.in/id/eprint/39155

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