Large-Eddy Simulations of turbulent flow through a heated square duct

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

چکیده ندارد.

Characterisation of Marginally Turbulent Square Duct Flow

We have performed direct numerical simulation of fully developed turbulent flow in a straight duct with square cross-section. The main objective of the present study is to determine the minimal requirements for maintaining turbulence in duct flows [1]. A detailed analysis of this limit regime allows to elucidate the dominant mechanisms governing the marginally turbulent state, where the self-su...

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

Large Eddy Simulation of Turbulent Square Channel Flow Using a PC-Cluster Architecture

A fully developed square channel flow with a Reynolds number of Re = 4410 (based on bulk velocity and duct width) has been calculated using Large Eddy Simulation (LES) technique with the Smagorinsky eddy viscosity model. Results for the Prandtl’s secondary motion which is turbulence-driven show good qualitative picture and are in good quantitative agreement with values from other authors. Diffe...

Direct-numerical and Large-eddy Simulations of a Non-equilibrium Turbulent Kolmogorov Flow

A non-equilibrium form of turbulent Kolmogorov ow is set up by making an instantaneous change in the amplitude of the spatially-periodic forcing. It is found that the response of the ow to this instantaneous change becomes more dramatic as the wavenumber of the forcing is increased, and, at the same time, that the faithfulness with which the large-eddy-simulation results agree with the direct-n...