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Multiphase Microfluidics: The Diffuse Interface Model

Multiphase Microfluidics: The Diffuse Interface Model

Paperback

Series: CISM International Centre for Mechanical Sciences, Book 538

Technology & EngineeringPhysics

ISBN10: 3709117518
ISBN13: 9783709117514
Publisher: Springer Pg
Published: May 9 2014
Pages: 176
Weight: 0.59
Height: 0.39 Width: 6.14 Depth: 9.21
Language: English

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 problems 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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