Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Large Scale Effects in the Turbulent Kinetic energy Budget of Channel Flows
Submission Author:
Luiz Augusto Camargo Aranha Schiavo , South Yorkshire
Co-Authors:
William Wolf, João Luiz F. Azevedo, Luiz Augusto Camargo Aranha Schiavo
Presenter: Luiz Augusto Camargo Aranha Schiavo
doi://10.26678/ABCM.COBEM2017.COB17-0202
Abstract
Turbulent channels flows are investigated using numerical simulations. Incompressible, highly-resolved, large eddy simulations, LES, are performed to investigate straight channels. LES results are obtained using a semi-spectral formulation for low to moderate Reynolds numbers, $Re_{\tau} =$ 172 and 617, based on the friction velocity at the channel inlet. The aim of this work is to analyze the turbulent kinetic energy, TKE,balances in wave-space for channel flows. The current study allows the investigation of the effects of large turbulent scales in the viscous wall region.
Keywords
Large scales, Turbulence, Boundary Layer, LES
