K. Morita et al., Application of the drift-flux model for analysis of multi-dimensional, multi-phase, multi-component flows, J ATOM E S, 42(2), 2000, pp. 124-132
A modified drift-flux model was developed for analyses of multi-dimensional
. multi-phase, multi-component flows. The model enables us to apply the con
ventional drift-flux model to such complex flows by treating various forces
acting on a dispersed phase as the effect of a generalized acceleration fi
eld, or modified gravitational acceleration field. This includes the effect
of accelerations due to different forces such as a centrifugal force due t
o curvatures of streamlines, and a force due to inter-phasic interactions,
assuming that there is no distinction among them. A general theory of the m
odified drift-flux model was described modeling the drift velocity for vari
ous multi-phase flow conditions, and discussions were made on possible ways
to employ the theory. Applications of the present model to a gas-liquid an
d a particle-gas-liquid flows showed encouraging results.