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The effect of orifices on the liquid distribution in annular two-phase flow
Authors:K.W. McQuillan  P.B. Whalley
Affiliation:

Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, England

Abstract:The effect of using orifices to disrupt the water film in air-water annular two-phase flow has been studied experimentally in a vertical tube by measuring the wall film flowrate at various distances upstream and downstream of several different sizes of orifice. The orifices cause a temporary reduction in the downstream water film flowrate, which returns to its equilibrium value further downstream. The experimental results have been used, together with those of other investigators, to compare the effects of orifices to those of swirl tapes, and further to compare the processes of entrainment and deposition within annular two-phase flow.
Keywords:
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