Journal
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Volume 45, Issue 1, Pages 87-98Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0017-9310(01)00111-9
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Assuming the rate of droplet entrainment is characterized by the ratio of the interfacial shear force to the surface tension force acting on the phase interface, new correlation representing the rate of droplet entrainment in annular-dispersed two-phase flow was developed. Although the correlation is based on the simple assumption, the quasiequilibrium droplet flow rates measured in many experiments were predicted reasonably well (root mean square error of entrainment fraction was roughly halved comparing with several existing correlations). Its applicability to the nonequilibrium situation was also demonstrated by the numerical calculations using a one-dimensional three-fluid model. (C) 2001 Elsevier Science Ltd. All rights reserved.
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