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- W2398096317 abstract "Studies of the effects upon gas-liquid two-phase flows of pipe fittings such as expansions, contractions, bends, and valves have usually concentrated upon pressuredrop correlations and have not attempted to determine changes in the distributions of the gas and liquid phases caused by the fitting. However, it is known that such information is important if, for example, flow separators, which divide the gas and liquid phases in a variety of industrial processes, are to function efficiently. It is therefore important to gain an understanding of the influence upon phase distributions of the common pipe fittings mentioned above, which will be found in almost any industrial pipework system. As a first step, the dispersion of solid particles carried by turbulent gas flows through a pipe expansion has been modelled numerically. The commercial fluid-flow code CFDS-FLOW˜hDas been used to model the gas flow, together with an eddy interaction model for determination of the motion of the solid particles. Mean particle velocities and root-mean-square values of the particle velocity fluctuations, as well as particle concentrations, are evaluated and compared with recent experimental results. The influence of different eddy-length and eddy-lifetime specifications upon the dispersion of particles of various sizes is investigated. It is found that the different eddy characteristics have little effect on predicted mean particle velocities, whereas fluctuations in particle velocities and particle concentration are sensitive to the changes made. By comparing the results with experimental data, it is possible to draw conclusions about the relative merits of the different eddy specifications." @default.
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- W2398096317 date "1996-03-01" @default.
- W2398096317 modified "2023-10-16" @default.
- W2398096317 title "Dispersion of solid particles in turbulent flow through pipe expansions" @default.
- W2398096317 doi "https://doi.org/10.1093/imaman/7.2.149" @default.
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