Development of a low-Reynolds-number k-ω model for FENE-P fluids
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Data
2013-01-01
Autores
Resende, P. R. [UNESP]
Pinho, F. T.
Younis, B. A.
Kim, K.
Sureshkumar, R.
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Resumo
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. © 2012 Springer Science+Business Media Dordrecht.
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Drag reduction, FENE-P, k-ω turbulence model, Polymer solutions, FENE-P model, Heat fluid flow, Low Reynolds number, Newtonian fluids, Turbulent channel flows, Visco-elastic fluid, Turbulence models
Como citar
Flow, Turbulence and Combustion, v. 90, n. 1, p. 69-94, 2013.