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Bimonthly Since 1986 |
ISSN 1004-9037
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Publication Details |
Edited by: Editorial Board of Journal of Data Acquisition and Processing
P.O. Box 2704, Beijing 100190, P.R. China
Sponsored by: Institute of Computing Technology, CAS & China Computer Federation
Undertaken by: Institute of Computing Technology, CAS
Published by: SCIENCE PRESS, BEIJING, CHINA
Distributed by:
China: All Local Post Offices
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Abstract
The article importance lies in the interest among scientists in describing such complex streams as multiphase flows, which physical models have now been developed and corrected. This research aims at studying the behaviour of flows of multiphase mixtures in pipes, when there is a difference in elevations. The study method is based on computer modelling using a simulator of multiphase flows created by the authors. The simulator is appropriate for describing the flow of multiphase mixtures in complex systems, with implementation of two-velocity motion model of various phases. In liquid-gas mixture, it results in different velocities of phases motion. The analysis results demonstrate that velocities differ substantially. The presence of gravitational component greatly affects the nature of flow, and, in some cases, leads to a change in flow regimes. The work shows that regimes can also be implemented without reaching steady-state conditions. The article materials are of practical value to design long-distance pipelines, placed across the terrains of certain topography.
Keyword
hydrodynamics of multiphase media, modelling of technical systems, flow regimes, software codes, phase equilibria
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