GENERATION OF INFLOW TURBULENCE FOR LES : LES computation of iso-tropic turbulence using inflow turbulence

Inflow turbulence generation for LES of wind flow around bluff body

Large eddy simulation (LES) has been widely applied in wind-related problems. A key issue to ensure obtaining accurate results by LES is to generate an appropriate inflow field satisfying the physical wind characteristics in the atmospheric boundary layer (ABL). The methods adopted in this study for inflow field generation include two statistical methods (the random flow generation method (RFG)...

LES of stratified turbulence

Turbulence Pro les with Generalized

The results obtained from 3398 vertical prooles of atmospheric turbulence measured during 11 nights at the Observatorio Astronn omico Nacional in San Pedro MM artir (Baja California, M exico) are presented. The observations were carried out with the generalized scidar (GS) installed at the 1.5 m and the 2.1 m telescopes of that site, in March and April 1997. The open air seeing was measured wit...

A LES-Langevin model for turbulence

We propose a new model of turbulence for use in large-eddy simulations (LES). The turbulent force, represented here by the turbulent Lamb vector, is divided in two contributions. The contribution including only subfilter fields is deterministically modeled through a classical eddy-viscosity. The other contribution including both filtered and subfilter scales is dynamically computed as solution ...

LES of canonical shock-turbulence interaction

The interaction between shock waves and turbulence is present in a large variety of high-speed flows with relevance in scientific and engineering applications. The use of largeeddy simulations (LES) to predict such flows requires subgrid-scale (SGS) models capable of accurately representing the physics behind this interaction at the unresolved scales. The canonical shock-turbulence interaction ...