局所相対速度モデルの固気液三相流への応用

概要

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In the present study, a two-phase flow model based on local relative velocity, which had been previously proposed by the authors, was extended to a model for gas-liquid-solid three-phase flows. The extension was carried out by utilizing a hypothetical two-phase flow, which is conceived by removing one phase of the three phases. In order to examine the usefulness of the extended model, the measured area-averaged volumetric fractions of gas-liquid-solid three-phase bubbly or slug flows in vertical pipes were correlated based on the basic equations of the model. The accuracy of the obtained correlation was compared with the drift-flux correlation, the correlation based on a multiplier method and the correlation based on a gas-liquid-solid three-phase slug flow model. Consequently, it was confirmed that the extended model gives simpler and more accurate correlations for the area-averaged volumetric fractions of the gas-liquid-solid three-phase flows.
社団法人日本機械学会の論文
1993-05-25