Results 11 to 20 of about 157,284 (291)

Aeroacoustic prediction based on large-eddy simulation and the Ffowcs Williams–Hawkings equation

open access: yesAdvances in Aerodynamics, 2022
A hybrid noise computation method is presented in this paper. Large-eddy simulation with wall-model equation is proposed to compute the flow field. With a stress-balanced wall-model equation, the near-wall computation cost of large eddy simulation was ...
Yufei Zhang   +3 more
doaj   +1 more source

Large Eddy Simulation of Hypersonic Turbulent Boundary Layers

open access: yesFluids, 2021
The recent revival of interest in developing new hypersonic vehicles brings attention to the need for accurate prediction of hypersonic flows by computational methods.
Nadia Kianvashrad, Doyle Knight
doaj   +1 more source

A Combustion Regime-Based Model for Large Eddy Simulation

open access: yesEnergies, 2021
The aim of this work is to propose a unified (generalized) closure of the chemical source term in the context of Large Eddy Simulation able to cover all the regimes of turbulent premixed combustion.
Eugenio Giacomazzi, Donato Cecere
doaj   +1 more source

Evaluating Terrain as a Turbulence Generation Method

open access: yesEnergies, 2021
When driving microscale large-eddy simulations with mesoscale model solutions, turbulence will take space to develop, known as fetch, on the microscale domain.
Patrick Hawbecker, Matthew Churchfield
doaj   +1 more source

Numerical studies towards practical large-eddy simulation [PDF]

open access: yes, 2007
Large-eddy simulation developments and validations are presented for an improved simulation of turbulent internal flows. Numerical methods are proposed according to two competing criteria: numerical qualities (precision and spectral characteristics), and
C. Bogey   +20 more
core   +4 more sources

Modeling space-time correlations of velocity fluctuations in wind farms [PDF]

open access: yes, 2017
An analytical model for the streamwise velocity space-time correlations in turbulent flows is derived and applied to the special case of velocity fluctuations in large wind farms.
Lukassen, Laura J.   +3 more
core   +3 more sources

Discretization error dominance over subgrid terms in large eddy simulation of compressible shear layers in 2D [PDF]

open access: yes, 1994
Second- and fourth-order-accurate spatial discretization methods give rise to discretization errors which are large than the corresponding subgrid terms in large eddy simulation of compressible shear layers in 2D, if the ratio between the filter width ...
Blumen   +15 more
core   +3 more sources

A Python interface to the Dutch Atmospheric Large-Eddy Simulation

open access: yesSoftwareX, 2020
We present a Python interface for the Dutch Atmospheric Large Eddy Simulation (DALES), an existing Fortran code for high-resolution, turbulence-resolving simulation of atmospheric physics.
Gijs van den Oord   +6 more
doaj   +1 more source

Large eddy simulation of upward flame spread on PMMA walls with a fully coupled fluid–solid approach [PDF]

open access: yes, 2017
A fully coupled fluid–solid approach has been developed within FireFOAM 2.2.x, a large eddy simulation (LES) based fire simulation solver within the OpenFOAM® toolbox.
Fukumoto, Kazui   +2 more
core   +1 more source

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