CALCULATION OF VISCOUS FLOW AROUND A WING PROFILE USING OPEN FOAM

The main intent of this study is to investigate different turbulent models and aerodynamics characteristics of an airfoil. The paper deals with the calculation of viscous flow around a wing profile using OpenFOAM software and a comparison is made between obtained results with the experimental data. The geometry was simplified into a 2D airfoil and the viscous flow field were analyzed at a Reynolds number 3.0×106. The chosen airfoil for this experiment is low Reynolds number NREL S809 airfoil. The modelling has been performed in ANSYS 15.0, meshing has been done in ICEM - CFD software and the simulation is performed in OpenFOAM 4.1 software. The main parameters of an airfoil such as coefficients of Lift, Drag, Pressure, and Moment across a range of angle of attacks were calculated using a steady state solver and compared with the experimental data. Comparisons were also done between different turbulence models. Finally the best turbulent model was simulated using an unsteady solver