SIMULATION NUMERIQUE INSTATIONNAIRE DE LA CONVECTION FORCEE TURBULENTE DANS UNE CONDUITE RECTANGULAIRE MUNIE DES CHICANES POREUSES POUR APPLICATION AUX CAPTEURS SOLAIRES PLANS A AIR

Abstract

A numerical study of an unsteady three-dimensional turbulent flow of air passing through a rectangular section pipe with porous baffles for an airspace sensor using the Gambit mesh and the Fluent calculation code. The governing equations, based on the model used to model unsteady turbulence, are solved by the finite volume method using the SIMPLEC algorithm. The profiles and the axial velocity fields, as well as the profiles and the Nusselt number distribution in the duct, were obtained for all the geometry considered and for various selected sections, namely, upstream, downstream and between the two. porous baffles with the efficiency of the pipe provided with porous baffles.