eng Science and Education Publishing American Journal of Mechanical Engineering 2328-4110 2018-04-21 6 2 43 47 10.12691/ajme-6-2-1 AJME2018621 article Alireza Heidarian 1 Hassan Ghassemi gasemi@aut.ac.ir 2 Pengfei Liu 3 Department of Marine Engineering, Persian Gulf University, Boushehr, Iran Department of Maritime Engineering, Amirkabir University of Technology, Tehran, Iran Australian Maritime College, University of Tasmania, Australia Numerical aerodynamic of the rectangular wing is presented regarding to the ground effect. Clark-Y wing section is selected for the present calculations. The Reynolds-averaged Navier-Stokes (RANS) equations solver of the ANSYS-CFX software is employed with a realizable k-ε turbulent model. The numerical results lift and drag of the rectangular airfoil at ground effect are verified with the experimental data. Pressure distribution and velocity contour and turbulent intensity at the trailing edge of the airfoil are presented and discussed. http://pubs.sciepub.com/ajme/6/2/1/ajme-6-2-1.pdf ground effect pressure and velocity distribution lift and drag