Authors : D. Tcheukam- Toko, C.A. Koueni-Toko, R. Mouangue and P. Paranthoen
Abstract: The atmospheric pollution is one of the most dominating phenomenons now-a-days. It is generated partially by warm gases emitted by transporting vehicles and industrial activities and equally has origin the degradation of the environment in general and the quality of air in particular. This study concerns the homogenous compressible flows with constant viscosity. It consist of an experimental validation and modelling of the diffusion of a passive scalar in an interacting turbulent flow with two heated oblique air jets inclined at an angle of 45° in relation to the principal direction. The two jets emission holes are circular with a diameter of 5 mm and spaced out by 40 mm. This study treats the influence of the initial velocities of jets on the diffusion of the temperature field. The problem was tackled using the calculation codes of Gambit-Fluent to simulate the diffusion of a scalar. The results show that the flow temperature decreases with the increase of the Reynolds number and the scalar sustains lesser and lesser influence on the longitudinal flow. The numerical results are in account with the experimental results.
D. Tcheukam- Toko, C.A. Koueni-Toko, R. Mouangue and P. Paranthoen, 2012. Modelling and Experimental Validation of a Passive Scalar Diffusion. Journal of Engineering and Applied Sciences, 7: 363-371.