eng Science and Education Publishing American Journal of Mechanical Engineering 2328-4110 2015-07-13 3 3A 9 14 10.12691/ajme-3-3A-2 AJME201533A2 article Slah Driss 1 Zied Driss Zied.Driss@enis.rnu.tn 1 Imen Kallel Kammoun 1 Laboratory of Electro-Mechanic Systems (LASEM), National School of Engineers of Sfax (ENIS), University of Sfax (US), B.P. 1173, Road Soukra km 3.5, 3038 Sfax, TUNISIA The present paper is dedicated to the numerical simulation of the aerodynamic structure of an arched roof obstacle with a height h=63 mm and a length L2=118 mm. The governing equations of mass and momentum in conjunction with the standard k-ε turbulence model are solved using the software "Solid Works Flow Simulation". A finite volume discretization is used. The numerical results are validated with anterior results developed in a wind tunnel. The numerical simulations agreed reasonably with the experimental results and the numerical model was validated. http://pubs.sciepub.com/ajme/3/3A/2/ajme-3-3A-2.pdf CFD turbulent flow aerodynamic structure arched roof