Application of the Drift-Flux Model for Analysis of Multi-Dimensional, Multi-Phase, Multi-Component Flows

• Published in: Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan Vol. 42; no. 2; pp. 124 - 132
• Main Authors: KODAMA, Yuji, RAO, Yan F., MORITA, Koji, FUJIMOTO, Noboru, NAKAGAWA, Kiyoshi, YANG, Rui-Chang, FUKUDA, Kenji
• Format: Journal Article
• Language: Japanese
• Published: Atomic Energy Society of Japan 2000
• Subjects: centrifugal force; drift velecity; drift-ftux model; experimental analysis; gas-liquid flow; gravitational acceleration; Gravitational effects; Mathematical models; multi-dimensional analysis; multi-phase multi-component flow; numerieal simulation; Particle-gas-liquid flow
• ISSN: 0004-7120; 2186-5256
• DOI: 10.3327/jaesj.42.124

A modified drift-flux model was developed for analyses of multi-dimensional, multi-phase, multi-component flows. The model enables us to apply the conventional drift-flux model to such complex flows by treating various forces acting on a dispersed phase as the effect of a generalized acceleration field, or modified gravitational acceleration field. This includes the effect of accelerations due to different forces such as a centrifugal force due to curvatures of streamlines, and a force due to inter-phasic interactions, assuming that there is no distinction among them. A general theory of the modified drift-flux model was described modeling the drift velocity for various multi-phase flow conditions, and discussions were made on possible ways to employ the theory. Applications of the present model to a gas-liquid and a particle-gas-liquid flows showed encouraging results.