Model Mono-Disperse Suspensions

The theoretical developments just reviewed lead to interesting predictions when applied to specific model systems, which must be validated by their comparison with experimental data. Let us review some of those comparisons involving mono-disperse suspensions. 

A model for the bulk effective resistivity of a dilute suspension (disperse phase) of noninteracting conducting spheres (not necessarily mono-dispersed) of material resistivity 9id and void fraction ad suspended in a continuous medium of material resistivity 9ic was derived by Maxwell (1954). His result is... 

Evaluation of Hydrodynamic Correlations - In contrast to mono-disperse systems, most of the hydrodynamic empirical correlations proposed for modelling the settling behaviour of poly-disperse systems (see for example Williams and Amarasinghe [6]) have been mainly confined to relatively concentrated systems (> 5% v/v). This is because as opposed to the dilute systems such as those encountered in the present study, these are easier to model since they are characterised by well defined interfaces the settling of which is largely representative of the bulk behaviour of the suspension. Accordingly all comparison between model and experiment presented here is confined to mono-disperse systems. 

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