Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
Investigation of Turbulent Flows over a NACA0012 Airfoil Using Statistical Post-Processing of Large Eddy Simulation
Submission Author:
Gabriel Nogueira , SP
Co-Authors:
Gabriel Nogueira, William Wolf
Presenter: Gabriel Nogueira
doi://10.26678/ABCM.COBEM2019.COB2019-0368
Abstract
The study of turbulent flows over airfoils finds application in aeronautical and wind energy research where drag and noise reduction are sought. In this work, we combine high-fidelity simulations with statistical post-processing tools to provide a better understanding of physical processes related to turbulent flows in the presence of walls with adverse pressure gradient variations. Wall resolving large eddy simulation is the method of choice to simulate the current flows. An investigation of the mechanisms of production, advection, transport and dissipation is provided through analysis of the turbulent kinetic energy (TKE) budgets and other turbulence statistics such as the Lumley triangle and Reynolds stress anisotropy tensor. Simulations are performed for different meshes in order to verify convergence of statistics. Moreover, different tripping configurations are analyzed to assess their impact on the present flows.
Keywords
Large Eddy Simulation (LES), Turbulent flow, Aerodynamics, anisotropy, Turbulent kinetic energy
