title: Model for particle migration in bidisperse suspensions by use of effective temperature.
abstract: A model for the particle migration in a bidisperse flowing suspension is proposed and compared to experimental data. A mixture formulation, describing the suspension velocity and pressure and the concentrations of two solid fractions is derived from a multi-fluid model. In the multi-fluid model the liquid phase and both dispersed phases are interpenetrating phases. The closure relations are based on a mean field approach extending closure relations of a monodisperse suspension. The model is used to predict segregation based on particle size in channel flow where the particles are subjected to Brownian motion and shear-induced migration. The comparison of the model results with experimental data shows that particle migration is predicted well by the given formulation.
authors.affiliation: Food and Biobased Research, Wageningen University & Research Centre, P.O. Box 17, 6700 AA Wageningen, The Netherlands. martijntje.vollebregt@wur.nl
authors.forename: H M
authors.initials: HM
authors.lastname: Vollebregt
authors.forename: R G M
authors.initials: RG
authors.lastname: van der Sman
authors.forename: R M
authors.initials: RM
authors.lastname: Boom
mesh_terms: D003198:Computer Simulation; D005374:Filtration; D008956:Models, Chemical; D009038:Motion; D010316:Particle Size; D011312:Pressure; D013535:Suspensions / Q000737:chemistry*; D013696:Temperature
chemical_list: D013535:Suspensions