APPLICATION OF A k−ε CLOSURE TO A HEATED TURBULENT OFFSET JET
The complex flow which occurs when a heated turbulent jet discharges above a cool, isothermal surface was investigated numerically. This flow is influenced by significant flow curvature, buoyancy, impingement and recirculation. The main features of the flow have been characterized in the literature by the exit Reynolds number and offset ratio. It is the purpose of this study to assess the applicability of a modified k−ε closure model to this flow.
Comparisons with limited data for the unheated case and flow predictions for the heated case are presented. The impingement distance is determined to within 2% of the experimental results, however detailed velocity profiles are not well predicted near the wall. Curvature modification and the wall boundary condition for ε significantly affect the solution.