Large Eddy Simulation of Vortex Structures and Frequency Characteristics in Turbulent Flow through an Axisymmetric Sudden Expansion

effect of sub-grid scales on large eddy simulation of particle deposition in a turbulent channel flow

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Large-Eddy Simulation of Turbulent Flow over an Axisymmetric Hill

Large-Eddy Simulation (LES) of high Reynolds number turbulent flow over an axisymmetric hill of height H = 2δ, where δ is the incoming turbulent boundary layer thickness, is presented in this paper. Surface mean pressure, flow visualization and mean velocity profiles are presented and compared with experiments. In general, good agreement is obtained for the surface mean pressure and axial flow ...

Large-eddy simulation of turbulent flow over an array of wall-mounted cubes submerged in an emulated atmospheric boundary-layer

Turbulent flow over an array of wall-mounted cubic obstacles has been numerically investigated using large-eddy simulation. The simulations have been performed using high-performance computations with local cluster systems. The array of cubes are fully submerged in a simulated deep rough-wall atmospheric boundary-layer with high turbulence intensity characteristics of environmental turbulent fl...

Large Eddy Simulation of Variable Density Turbulent Axisymmetric Jets

Three cases of variable-density turbulent round jets discharging from a straight circular pipe into a weakly confined low-speed co-flowing air stream are studied with the aid of large eddy simulation. The density ratios considered are 0.14 [He/air], 1.0 [air/air] and 1.5 [CO2/air], with Reynolds numbers of 7000, 21000 and 32000, respectively. Detailed comparisons of the statistics show good agr...

Investigations of Three- Dimensional Turbulent Cavity Flow Using Large Eddy Simulation Approach