Breakage and coalescence of drops in turbulent stirred dispersions

Nambiar, D. K. R. ; Kumar, R. ; Gandhi, K. S. (1990) Breakage and coalescence of drops in turbulent stirred dispersions Sadhana (Academy Proceedings in Engineering Sciences), 15 (2). pp. 73-103. ISSN 0256-2499

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The various existing models for predicting the maximum stable drop diameter dmax in turbulent stirred dispersions have been reviewed. Variations in the basic framework dictated by additional complexities such as the presence of drag reducing agents in the continuous phase, or viscoelasticity of the dispersed phase have been outlined. Drop breakage in the presence of surfactants in the continuous phase has also been analysed. Finally, the various approaches to obtaining expressions for the breakage and coalescence frequencies, needed to solve the population balance equation for the number density function of the dispersed phase droplets, have been discussed.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Drop Breakage; Coalescence of Drops; Stirred Vessels; Size Distribution of Drops in Stirred Vessels; Turbulence; Maximum Stable Drop Diameter; Breakage Frequency; Coalescence Frequency
ID Code:11541
Deposited On:16 Nov 2010 13:49
Last Modified:16 May 2016 20:59

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