TWO-PHASE FRICTION FACTOR IN GAS-LIQUID PIPE FLOW

Authors

  • L. E. Ortiz-Vidal Universidade de São Paulo
  • N. Mureithi Polytechnique Montreal Department of Mechanical Engineering BWC/AECL/NSERC Chair of Fluid-Structure Interaction
  • O. M. H. Rodriguez Universidade de São Paulo

DOI:

https://doi.org/10.5380/reterm.v13i2.62101

Keywords:

mixture Reynolds number, friction factor, two-phase flow, gasliquid flow, phenomenological modeling

Abstract

An improved friction factor prediction model for two-phase gas-liquid pipe flow is proposed. The model is based on a previous no-slip formulation where a mixture Reynolds number was defined. In this study, the mixture Reynolds number is modified by introducing slip-ratio information through the inclusion of void-fraction and flow-pattern dependent models. An experimental database reconstituted from the available literature and new frictional pressure-drop data for air-water horizontal flow in an I.D. 0.0204m pipe are also presented. The full database considers several different flow conditions for horizontal two-phase flow of refrigerants and air-water mixtures. It was compared to predictions of models from the literature as well as the new proposed model. We found that the proposed and Müller-Steinhagen-and-Heck methods provide better agreement for the current experimental database. It is shown that the inclusion of void-fraction information on the previous mixture Reynolds definition improves the friction-factor prediction

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Published

2014-12-31

How to Cite

Ortiz-Vidal, L. E., Mureithi, N., & Rodriguez, O. M. H. (2014). TWO-PHASE FRICTION FACTOR IN GAS-LIQUID PIPE FLOW. Revista De Engenharia Térmica, 13(2), 81–88. https://doi.org/10.5380/reterm.v13i2.62101

Issue

Vol. 13 No. 2 (2014)

Section

Ciência/Science

License

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