Technical Report 63, c4e-Preprint Series, Cambridge

Simulating the Structural Evolution of Droplets Following Shell Formation

ref: Technical Report 63, c4e-Preprint Series, Cambridge

Associated Theme: Particle Processes

Abstract

Building on the new droplet drying framework developed by the authors in their previous papers, this paper develops physically motivated criteria for dynamically deciding the appropriate structural sub-model to use at each stage of the drying process. Such criteria create a spatially resolved mechanistic droplet drying model which, for the first time, is capable of simulating multiple dried-particle morphologies based on evolving droplet composition and drying conditions. The new criteria are used in conjunction with the previously described model framework to simulate colloidal silica droplets, investigating the relationship between suspended particle size and dried-particle morphology.

Material from this preprint has been published in: Chemical Engineering Science 65, 713-725, (2010)

Download

PDF (523.74 KB)