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RESEARCH PAPERS: Multiphase Heat Transfer

A Two-Fluid Model for Reacting Turbulent Two-Phase Flows

[+] Author and Article Information
S. H. Chan, M. M. M. Abou-Ellail

Department of Mechanical Engineering, University of Wisconsin—Milwaukee, P.O. Box 784, Milwaukee, WI 53201

J. Heat Transfer 116(2), 427-435 (May 01, 1994) (9 pages) doi:10.1115/1.2911415 History: Received July 01, 1992; Revised July 01, 1993; Online May 23, 2008

Abstract

A reacting two-fluid model, based on the solution of separate transport equations for reacting gas-liquid two-phase flow, is presented. New time-mean transport equations for two-phase mixture fraction f and its variance g are derived. The new two-fluid transport equations for f and g are useful for two-phase reacting flows in which phases strongly interact. They are applicable to both submerged and nonsubmerged combustion. A pdf approach to the reaction process is adopted. The mixture fraction pdf assumes the shape of a beta function while the instantaneous thermochemical properties are computed from an equilibrium model. The proposed two-fluid model is verified by predicting turbulent flow structures of an n-pentane spray flame and a nonreacting bubbly jet flow for which experimental data exist. Good agreement is found between the predictions and the corresponding experimental data.

Copyright © 1994 by The American Society of Mechanical Engineers
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