Science and Education Publishing Sustainable Energy 2 4 2014 08 13 Study of the Reynolds Number Effect on the Aerodynamic Structure around an Obstacle with Inclined Roof 126 133 EN Slah Driss Zied Driss Laboratory of Electro-Mechanic Systems (LASEM), National School of Engineers of Sfax (ENIS), Univrsity of Sfax, Sfax, TUNISIA Imen Kallel Kammoun RSE2014242 10.12691/rse-2-4-2 2014 07 29 2014 08 10 2014 08 13 In this work, we are interested on the study of the Reynolds number effect on the aerodynamic structure around an obstacle with inclined roof. Different Reynolds numbers equals to Re=2666, Re=10666, Re=24000 and Re=32000 are particularly considered. The software "SolidWorks Flow Simulation" has been used to present the local characteristics. The numerical model considered is based on the resolution of the Navier-Stokes equations in conjunction with the standard k-ε turbulence model. These equations were solved by a finite volume discretization method. The numerical model is validated with experimental results conducted on an open wind tunnel equipped by an adequate model.