Development of a low-Reynolds-number k-ω model for FENE-P fluids

P. R. Resende, F. T. Pinho, B. A. Younis, K. Kim, R. Sureshkumar

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

A low-Reynolds-number k-ω model for Newtonian fluids has been developed to predict drag reduction of viscoelastic fluids described by the FENE-P model. The model is an extension to viscoelastic fluids of the model for Newtonian fluids developed by Bredberg et al. (Int J Heat Fluid Flow 23:731-743, 2002). The performance of the model was assessed using results from direct numerical simulations for fully developed turbulent channel flow of FENE-P fluids. It should only be used for drag reductions of up to 50 % (low and intermediate drag reductions), because of the limiting assumption of turbulence isotropy leading to an under-prediction of k, but compares favourably with results from k-ε models in the literature based on turbulence isotropy.

Original languageEnglish (US)
Pages (from-to)69-94
Number of pages26
JournalFlow, Turbulence and Combustion
Volume90
Issue number1
DOIs
StatePublished - Jan 1 2013

Keywords

  • Drag reduction
  • FENE-P
  • Polymer solutions
  • k-ω turbulence model

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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