Abstract
This paper examines the asymptotic behaviour of general probabilistic multiphase flow equations in fully developed gas-solids suspension flows as the solids concentration tends toward zero. This analysis suggests the existence of self-similar concentration and solids velocity profiles as solutions to general multiphase flow equations at low solids loading. The existing experimental evidence confirms this theoretical result and strongly suggests this to be a general feature of dilute suspension flows. The analysis further suggests that deviations from a similar profile regime as the solids loading is increased can be deduced from the relationship between solids flowrate and mean solids concentrations. Finally, the flow equation analysis provides a partial explanation for the difficulty associated with developing generalizable suspension pressure drop correlations.
Published Version
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