PREDICTION OF TURBULENT BUOYANT FLOW USING AN RNG A-ϵ MODEL

Abstract

Numerical predictions were carried out for turbulent natural convection in two tall air cavities. The standard and RNG k-e turbulence models were used for the predictions. The predicted results were compared with experimental data from the literature, and good agreement between prediction and measurement was obtained. Improved prediction was achieved using the RNG k-e model in comparison with the standard k-e model. The principal parameters for the improvement were investigated.

Notes

Address correspondence to Dr. Guohui Gan, Department of Architecture and Building Technology, Institute of Building Technology, University of Nottingham, University Park, Nottingham NG7 2RD, UK. E-mail: [email protected]