@ARTICLE{10.21494/ISTE.OP.2022.0777, TITLE={Comparison of different turbulence approaches: Application to a NACA 0012 profile}, AUTHOR={Bouchaïb Radi, Rabii El Maani, Soufiane Elouardi, }, JOURNAL={Uncertainties and Reliability of Multiphysical Systems}, VOLUME={5}, NUMBER={Issue 1}, YEAR={2022}, URL={https://www.openscience.fr/Comparison-of-different-turbulence-approaches-Application-to-a-NACA-0012}, DOI={10.21494/ISTE.OP.2022.0777}, ISSN={2514-569X}, ABSTRACT={A comparative analysis between the capacities of the RANS and DES models to predict the distribution of flows and turbulence was carried out in order to develop guidelines for the transient simulation of NACA 0012 airfoil. The objective of this review is to highlight the fundamental differences between the turbulence models based on the Reynolds averaged Navier-Stokes (RANS) and DES approach around a 2D aircraft wing of the NACA 0012 type, in order to compare these two approaches and to provide future prospects. After the comparison of the relative computation time, the DES model proved to be a feasible method to efficiently and accurately simulate the unstable 2D turbulent flow of the NACA 0012 airfoil. The encouraging agreement obtained suggests that the widely-acknowledged status of DES as a near-future approach for aerodynamic application is justified.}}