Gijsbert Wierink, Christoph Goniva, Bojan Niceno, Kari Heiskanen,
"Mechanistic Modelling of Particle-Interface Interaction in Three-Phase Flows"
: Proceedings of the 8th International Conference on CFD in Oil and Gas, Metallurgical and Process Industries, Trondheim, 2011
Original Titel:
Mechanistic Modelling of Particle-Interface Interaction in Three-Phase Flows
Sprache des Titels:
Englisch
Original Buchtitel:
Proceedings of the 8th International Conference on CFD in Oil and Gas, Metallurgical and Process Industries, Trondheim
Original Kurzfassung:
The understanding of meso-scale phenomena in multiphase flows
plays a critical role in accurate multiphase modelling. For many
process applications control and manipulation of multiphase flow
dynamics is a key issue that requires deeper understanding of interfacial
phenomena. In mineral froth flotation, in particular, an
accurate model of the behavior of fine solids at the gas-liquid interface
is of major importance in macro-scale modelling. In this paper
we discuss a method where momenta of liquid, gas, and solid particles
are coupled. In order to describe systems characterized by high
volume fraction of solids, particles are modelled using the Discrete
Element Method (DEM) while fluids are modelled separately in the
CFD code. Particle and fluid momenta are then transferred between
the codes and coupled as source terms in the momentum equations.
The modelling method presented in this work can give valuable insight
in the behavior of three-phase systems and can contribute to
better statistical models for industrial applications.
Forschungs-