Numerical Analysis of NACA 6409 and Eppler 423 Airfoils

Abstract

 Current paper focuses on RANS based turbulence analysis of NACA 6409 and Eppler 423.  θ-Reθ SST was the RANS model that gave the most consistent results with the experimental data.  CFD Simulation results of pressure and velocity fields at different angles of attack are clearly presented.  CFD results with experimental data and XFoil are evaluated in terms of best glide ratio-(Cl/Cd)max and minimum sink-(Cl 1.5 /Cd)max criteria.