2 documents found, page 1 of 1
Modeling of agglomerate dispersion in single screw extruders
Domingues, N.; Camesasca, M.; Kaufman, M.; Manas-Zloczower, I.; Gaspar-Cunha, A.; Covas, J. A.A model for solid agglomerate dispersion in single screw extruders is proposed. The model combines numerical simulations of flow patterns in the metering section of a single screw extruder with a Monte Carlo method of clusters rupture and erosion mediated by a local fragmentation number. Particle size distributions and Shannon entropy are used for mixing characterization. The model is quite general and can be a...
Numerical and experimental study of agglomerate dispersion in polymer extrusion
Domingues, N.; Gaspar-Cunha, A.; Covas, J. A.; Camesasca, M.; Kaufman, M.; Manas-Zloczower, I.A model for agglomerate dispersion in screw extruders was developed and superimposed on the flow patterns as simulated using the FIDAP software. A particle tracking algorithm with an adaptive time step was used to follow the agglomerates trajectory. Along this flow path, the breakup probability was estimated using a Monte Carlo method and in conjunction with the local fragmentation number. Particle size distrib...