Hybrid two level and large-eddy simulation of wall bounded turbulent flows

Gungor A. G., Sanchez-Rocha M., Menon S.

11th EUROMECH European Turbulence Conference, Oporto, Portugal, 25 - 28 June 2007, vol.117, pp.322-324 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 117
  • City: Oporto
  • Country: Portugal
  • Page Numbers: pp.322-324
  • Istanbul Technical University Affiliated: Yes

Abstract

A novel approach to model high-Re wall-bounded flows is developed based on coupling the outer flow large-eddy simulation (LES) approach to a near-wall two-level simulation (TLS) approach. Here, the near-wall small-scale field is simulated rather than modeled. Simulations of turbulent channel flows, boundary layer and flow around a surface mounted hill demonstrate the ability of this model for capturing the turbulent flow behavior using very coarse grids.