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

被引：20

作者：

Resende, P. R. ^{[1
]}

Pinho, F. T. ^{[1
]}

Younis, B. A. ^{[2
]}

Kim, K. ^{[3
]}

Sureshkumar, R. ^{[4
]}

机构：

[1] Univ Porto, Ctr Estudos Fenomenos Transporte, Dept Engn Mecan, Fac Engn, P-4200465 Oporto, Portugal

[2] Univ Calif Davis, Dept Civil & Environm Engn, Davis, CA 95616 USA

[3] Hanbat Natl Univ, Dept Mech Engn, Taejon 305701, South Korea

[4] Syracuse Univ, Dept Biomed & Chem Engn, Syracuse, NY 13244 USA

来源：

FLOW TURBULENCE AND COMBUSTION | 2013年 / 90卷 / 01期

基金：

美国国家科学基金会;

关键词：

Drag reduction; Polymer solutions; FENE-P; k-omega turbulence model; TURBULENT CHANNEL FLOW; INDUCED DRAG-REDUCTION; DIRECT NUMERICAL-SIMULATION; PIPE-FLOW; RHEOLOGICAL PARAMETERS; RECIRCULATING-FLOWS; REDUCING FLUIDS; EPSILON MODEL; PREDICTIONS; DNS;

D O I：

10.1007/s10494-012-9424-x

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

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.

引用

页码：69 / 94

页数：26

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