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This article presents results from a numerical study of a turbulent slot jet   impinging on a concave surface. Five different low Reynolds number k-ε models   were evaluated to predict the heat transfer under a two dimensional steady   turbulent jet. The effects of flow and geometrical parameters (e.g. jet   Reynolds number and jet-to-target separation distance) have been   investigated. The Yap correction is applied for reducing the over-prediction   of Nusselt number in the near wall region. It is shown that among the models   tested in this study, the LS-Yap model is capable of predicting local Nusselt   number in good agreement with the experimental data in both stagnation and   wall jet region. Moreover, after implementation of Yap correction, no   significant effect of the nozzle-to-surface distance, h/B, on the predicted   stagnation Nusselt number has been found. Finally it is demonstrated that the   higher values of turbulent Prandtl number reduces the heat diffusion along   the wall and consequently the predicted local Nusselt number is reduced   especially in the wall jet region

Numerical modeling of a turbulent semi-confined slot jet impinging on a concave surface