Development of a Low-Reynolds-number k-omega Model for FENE-P Fluids

• Type: Article in International Scientific Journal
• Date: 2013

Authors

P. R. Resende (Author) Other; F. T. Pinho (Author) FEUP; B. A. Youni (Author) Other; K. Kim (Author) Other; R. Sureshkumar (Author) Other

Journal

Title: Flow, Turbulence and Combustion

Vol. 90 No. 1

Pages: 69-94

ISSN: 1386-6184

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 10 Citations

Scopus - 12 Citations

Associated Projects

TURBELAST - TURBELAST - Modelos de turbulência para fluídos viscoelásticos: abordagem RANS e LES

Other information

Authenticus ID: P-002-1ZC

DOI: 10.1007/s10494-012-9424-x

Abstract (EN): A low-Reynolds-number k-omega 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-epsilon models in the literature based on turbulence isotropy.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 26