Population Balance Modeling of Turbulent Mixing for Miscible Fluids

Madras, Giridhar and McCoy, Benjamin J (2005) Population Balance Modeling of Turbulent Mixing for Miscible Fluids. In: Journal of Fluids Engineering, 127 (3). pp. 564-571.

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Abstract

Blending one fluid into another by turbulent mixing is a fundamental operation in fluids engineering. Here we propose that population balance modeling of fragmentation-coalescence simulates the size distribution of dispersed fluid elements in turbulent mixing. The interfacial area between dispersed and bulk fluids controls the transfer of a scalar molecular property, for example, mass or heat, from the dispersed fluid elements. This interfacial area/volume ratio is proportional to a negative moment of the time-dependent size distribution. The mass transfer coefficient, in the form of a Damkohler number, is the single geometry- and state-dependent parameter that allows comparison with experimental data. The model results, easily realized by simple computations, are evaluated for batch and flow vessels.

Item Type:	Journal Article
Publication:	Journal of Fluids Engineering
Publisher:	American Society of Mechanical Engineers
Additional Information:	Copyright of this article belongs to American Society of Mechanical Engineers.
Keywords:	Mixing;Diffusion;Dispersion;Mathematical;Modeling;Turbulence;Blending
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	24 Jan 2007
Last Modified:	19 Sep 2010 04:34
URI:	http://eprints.iisc.ac.in/id/eprint/9559

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