Numerical simulation of the dynamic turbulent flow field through a channel provided with baffles : comparative study between two models of baffles : transverse plane and trapezoidal

A numerical study turbulent airflow in the presence of transverse baffles was
conducted. Two different types of baffles flat rectangular and trapezoidal, arranged in
overlapping in a pipe of rectangular section is presented in this article. The governing
equations based on k - ε model at low Reynolds number used to describe the turbulence
phenomena, are solved by the finite volume method using the algorithm SIMPLEC. The
velocity profiles were obtained for all the geometry considered and selected for different
sections, namely, upstream, downstream and between the two baffles and the friction
coefficients were obtained for different sections and for different Reynolds numbers.

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