Momentum Flux in Two-Phase Flow

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Abstract
Measurements of the momentum flux through a section of pipe with steam-water and air-water two-phase flow are reported. The results are used to evaluate the utility of various two-phase flow models and the underlying assumptions. The slip model was found to yield low values. The homogeneous model correlated the data well, but this is because of compensating errors in the assumptions. The steady flow assumption of most two-phase flow models is considered to be inadequate for prediction of the momentum flux at low quality. At higher quality the velocity profile is the dominant consideration.

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