In this study, a large eddy simulation (LES) model used three-dimensional incompressible Navier-Stokes equation is calculated for the numerical simulation of turbulent flow and atmospheric pollutant dispersion in the PBL. Instantaneous and detailed flow of velocity component was obtained with LES and ...
This study adopts large eddy simulation (LES) to examine the flow field in a rectangular embayment zone with different population densities of vegetation. The numerical model is validated by mean streamwise velocity data collected near mid-depth in the physical experiment. Vegetation rearranges the ...
A large eddy simulation (LES) model has been developed to study turbulent flow in open channel with the lower part of the flow domain occupied by a drag force layer representing vegetation. One equation model is used for subgrid scale turbulence closure. The length scale of turbulencelis propor...
An innovative computational model is presented for the large eddy simulation (LES) modeling of multi-dimensional unsteady turbulent flow problems in external flow field. Based on the LES principles, the model uses a pressure projection method to solve the Navier–Stokes equations in transient condition...
The solution concept of large-eddy simulation (LES) has been applied to simulate turbulent flow over and around a single cube mounted on the bottom of a plate channel for a Reynolds number of 50000 (based on the incoming mean bulk velocity and obstacle h
Moreover, the shear-thinning or thickening rheologies did not result in major changes to the nature of the flow at ReMR=7500. Direct numerical simulation (DNS) and large-eddy simulation (LES) are techniques well suited for predicting turbulent non-Newtonian fluid flows, because a detailed ...
Turbulent flow past an S-duct intake configuration was studied by means of Reynolds-averaged Navier-Stokes simulations (RANS) and detached eddy simulations (DES). One of the main purposes with the study was to make comparative studies of the two modellin
Large eddy simulations (LES) of turbulent flow over two kinds of vegetation-like model canopies are conducted here, including flow over a shallow submerged aquatic canopy and flow over a terrestrial canopy, with the aim of visualizing the underlying fluid dynamical processes within vegetation canopies...
By amending the engine CFD package(KIVA-3V),the large-eddy simulation(LES) model of turbulent flow in the process of compression of internal combustion engine was built.The horizontal speed and turbulent kinetic energy of turbulent flow in the compression process were simulated by this model.The ...
The capability of the detached eddy simulation (DES) version of the 1988 k–ω model has been validated in predicting the turbulent flow field and the heat transfer in a complete two pass channel. Results of mean flow quantities, secondary flows, friction and heat transfer are compared to ...