EFFECT OF TURBULENCE MODELS AND NEAR-WALL MODELING APPROACHES ON NUMERICAL RESULTS IN IMPINGEMENT HEAT TRANSFER
NUMERICAL HEAT TRANSFER PART B-FUNDAMENTALS, vol.60, no.6, pp.486-519, 2011 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 60 Issue: 6
- Publication Date: 2011
- Doi Number: 10.1080/10407790.2011.630956
- Journal Name: NUMERICAL HEAT TRANSFER PART B-FUNDAMENTALS
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.486-519
- Bursa Uludag University Affiliated: Yes
Abstract
In this study, turbulence models and near-wall modeling approaches were compared in impingement heat transfer. The Reynolds-averaged Navier-Stokes (RANS) turbulence models were compared using three near-wall modeling approaches. Moreover, the effect of near-wall modeling approaches on heat transfer was investigated and the predictions were compared with experiments. All computations were performed with the FLUENT code by considering two-dimensional, steady, and incompressible flow. Wall functions (WF) should be used carefully in conjunction with turbulence models, and the enhanced wall treatment (WT) is suggested for practical applications. The standard k-epsilon model showed the best agreement with the experimental data among the models used under the considered conditions.