APPLICATION OF A WALL-FUNCTION APPROACH TO THE LARGE EDDY SIMULATION OF THE NACA 4412 AIRFOIL UNDER NEAR-STALL CONDITIONS

A recently proposed Wall-Function formulation for Large Eddy Simulation (WFLES) based on equilibrium assumptions was applied on the NACA 4412 airfoil under near-stall conditions to investigate the quality of solutions in non-equilibrium flows. Three octree-type meshes featuring different levels of refinement were used in combination with the Fluent native GPU pressure-based solver to resolve the flow. Results indicate that the WFLES with an equilibrium wall function can produce reliable results even when applied to non-equilibrium flows with a relatively low cell count mesh.