Continuous distribution theory for Ostwald ripening: comparison with the LSW approach

Madras, Giridhar and McCoy, Benjamin J (2003) Continuous distribution theory for Ostwald ripening: comparison with the LSW approach. In: Chemical Engineering Science, 58 (13). pp. 2903-2909.

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Abstract

A numerical solution for a general population balance equation (PBE) for Ostwald ripening is compared with the usual approach developed by Lifshitz-Slyozov-Wagner (LSW). The PBE incorporates denucleation for unstable particles smaller than the critical nucleus size and reversible growth or dissolution of stable particles. The PBE theory shows how supersaturation decays to equilibrium, and (unlike LSW) how the particle size distribution (PSD) and its moments evolve to a final monodisperse state. The LSW model is known to correctly depict time dependence of particle number concentration and average particle size, but misrepresents the PSD higher moments.

Item Type:	Journal Article
Publication:	Chemical Engineering Science
Publisher:	Elsevier
Additional Information:	Copyright of this article belongs to Elsevier.
Keywords:	Ostwald ripening;LSW theory;Moment solutions;Particle size distribution;Population balance equations
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	25 Aug 2008
Last Modified:	19 Sep 2010 04:34
URI:	http://eprints.iisc.ac.in/id/eprint/9558

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