Wall-Resolved and Wall-Modelled LES for a NACA4412 Wing Profile in OpenFOAM

University essay from KTH/Skolan för teknikvetenskap (SCI)

Author: Nikolaos Charisoudis; [2024]

Keywords: ;

Abstract: The purpose of this study is to perform computational fluid dynamics (CFD) simulationfor an incompressible flow around an airfoil and investigate the aerodynamicproperties for different Reynolds numbers (400, 000 and 1, 000, 000) based on the chordlength, at the moderate angle of attack (AoA) of 5o . For this purpose a detailedevaluation of wall-resolved and wall-modelled large-eddy simulations (LES) wereconducted for the NACA4412 wing profile. The simulations were carried out with theopen-source CFD software OpenFOAM. The meshing of the computational domainwas constructed with the commercial software (student version) Ansys Icem while forthe post-processing of the different cases, a python package turbulucid was utilized.The results show good agreement compared to data and the aerodynamic properties ofthe flow captured accurately. However, for the case of the wall-modelled LES furtherinvestigation is required and is proposed for future campaigns.

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