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Multiphase Microfluidics: The Diffuse Interface Model

by Mauri, Roberto.
Authors: SpringerLink (Online service) Series: CISM Courses and Lectures, 0254-1971 ; . 538 Physical details: VIII, 176 p. 35 illus. online resource. ISBN: 3709112273 Subject(s): Engineering. | Hydraulic engineering. | Engineering. | Engineering Thermodynamics, Heat and Mass Transfer. | Engineering Fluid Dynamics. | Nanotechnology and Microengineering.
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E-Book E-Book AUM Main Library 621.4021 (Browse Shelf) Not for loan

Diffuse interface (D.I.) model for muliphase flows -- Phase separation of viscous ternary liquid mixtures -- Dewetting and decomposing films of simple and complex liquids -- Phase-field models.

Multiphase flows are typically described assuming that the different phases are separated by a sharp interface, with appropriate boundary conditions. This approach breaks down whenever the lengthscale of the phenomenon that is being studied is comparable with the real interface thickness, as it happens, for example, in the coalescence and breakup of bubbles and drops, the wetting and dewetting of solid surfaces and, in general, im micro-devices. The diffuse interface model resolves these probems by assuming that all quantities can vary continuously, so that interfaces have a non-zero thickness, i.e. they are "diffuse". The contributions in this book review the theory and describe some relevant applications of the diffuse interface model for one-component, two-phase fluids and for liquid binary mixtures, to model multiphase flows in confined geometries.

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