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PCC99, Phase Change with Convection: modelling and validation
June 24-26, 1999
European Science Foundation, Applied Mathematics for Industrial Flow Problems
Warsaw, Poland

Organizers
Tomasz Kowalewski, Fulvio Stella, Jerzy Banaszek, Janusz Szmyd

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Generalized Integral Forms of Wall Friction, Heat and Mass Transfer Factors for Drift Flux Model of Two-Phase Flow in Axisymmetrical Channels
by
Y. Kornienko
Institute of Physics and Power Engineering
Coauthors: E. Kornienko

This paper describes the problems of the generalized representations of constitutive equations required in the lumped parameter code. The paper has the following objectives: 1) to draw attention to an improved approach of constructing analytical and integral relationships for wall friction, heat and mass transfer factors based on drift flux model of two-phase flow, Reynolds flux concept and generalized substance transfer coefficient; 2) to show the way in which the suggested integral equation is used to derive relations for wall friction, heat and mass transfer coefficients; 3) to demonstrate the validity of the 'conformity principle' for limiting cases. The method proposed here is on the basis of the similarity theory, boundary layer model, and on a phenomenological description of the regularities of the substance transfer, and on an adequate simulation of the flow structure.

Date received: February 12, 1999


Copyright © 1999 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # caco-05.