Results 31 to 40 of about 52,645 (193)

Turbulent Flows and Pollution Dispersion around Tall Buildings Using Adaptive Large Eddy Simulation (LES) [PDF]

Buildings, 2020
The motivation for this work stems from the increased number of high-rise buildings/skyscrapers all over the world, and in London, UK, and hence the necessity to see their effect on the local environment. We concentrate on the mean velocities, Reynolds stresses, turbulent kinetic energies (TKEs) and tracer concentrations.
Elsa Aristodemou, Letitia Mottet, Achilleas Constantinou, Christopher Pain   +3 more
openaire   +5 more sources

Approximate deconvolution large eddy simulation of a stratified two-layer quasigeostrophic ocean model

, 2012
We present an approximate deconvolution (AD) large eddy simulation (LES) model for the two-layer quasigeostrophic equations. We applied the AD-LES model to mid-latitude two-layer square oceanic basins, which are standard prototypes of more realistic ...
Iliescu, Traian, San, Omer, Staple, Anne E.   +2 more
core   +1 more source

Hybrid RANS/LES computation of plane impinging jet flow

Archives of Mechanics, 2011
Flow characteristics are presented of simulation results of plane impinging jets at high nozzle-plate distances, with two k-ω based hybrid RANS/LES (Reynolds Averaged Navier–Stokes/Large–Eddy Simulation) models and a k-ω RANS model. The first hybrid RANS/
S. Kubacki, J. Rokicki, E. Dick
doaj   +1 more source

Low-Cost Eddy-Resolving Simulation in the Near-Field of an Annular Swirling Jet for Spray Drying Applications

ChemEngineering, 2021
Spray drying is one of many industrial applications that use annular swirling jets. For this particular application, the flow characteristics in the near-field of the jet are fundamental to obtaining high-quality dried products.
Jairo Andrés Gutiérrez Suárez, Alexánder Gómez Mejía, Carlos Humberto Galeano Urueña   +2 more
doaj   +1 more source

Towards eddy resolving CFD in room ventilation: A comparative precursor study of LES and SAS models [PDF]

E3S Web of Conferences
The building sector’s increasing focus on energy conservation, driven by climate change concerns, necessitates innovations in construction practices.
Jacobs Steffen, Mesenhöller Eva, Jakirlic Suad, Vennemann Peter   +3 more
doaj   +1 more source

Localization of unresolved regions in the selective large-eddy simulation of hypersonic jets [PDF]

, 2010
A method for the localization of the regions where the turbulent fluctuations are unresolved is applied to the selective large-eddy simulation (LES) of a compressible turbulent jet of Mach number equal to 5.
A Mignone, D Tordella, D Tordella, G Bodo, L Biferale   +4 more
core   +1 more source

Adaptive Embedded LES of the NASA Hump [PDF]

A scheme for adaptive embedded LES is proposed which automatically determines boundaries for LES regions in a hybrid LES-RANS computation, with the goal of minimizing the LES part of the computation for maximum accuracy with minimum cost.
Spalart P., Version V, Woodruff S. L.
core   +2 more sources

Large eddy simulation of two-dimensional isotropic turbulence [PDF]

, 1996
Large eddy simulation (LES) of forced, homogeneous, isotropic, two-dimensional (2D) turbulence in the energy transfer subrange is the subject of this paper.
A. Chekhlov, A. S. Monin, A. Yakhot, Alexei Chekhlov, Boris Galperin, D. Forster, G. E. Karniadakis, G. I. Sivashinsky, G. K. Batchelor, G. L. Browning, Ilya Staroselsky, J. A. Domaradzki, J. Smagorinsky, J. Smagorinsky, J. Sommeria, L. Smith, L. Smith, R. H. Kraichnan, R. H. Kraichnan, R. H. Kraichnan, R. H. Kraichnan, R. Sadourny, S. A. Orszag, S. Gama, S. Gama, Semion Sukoriansky, Steven A. Orszag, V. Yakhot, V. Yakhot, W. P. Dannevik, Y. Kuramoto   +30 more
core   +2 more sources

Boundary Conditions and SGS Models for LES of Wall-Bounded Separated Flows: An Application to Engine-Like Geometries

Oil & Gas Science and Technology, 2013
The implementation and the combination of advanced boundary conditions and subgrid scale models for Large Eddy Simulations are presented. The goal is to perform reliable cold flow LES simulations in complex geometries, such as in the ...
Piscaglia F., Montorfano A., Onorati A., Brusiani F.   +3 more
doaj   +1 more source

Application of Large Eddy Simulation on Qinghai-Xizang Plateau Wind for Airdrop

Gaoyuan qixiang
The Qinghai-Xizang Plateau has complex terrain and climate， which is a great challenge to the airdrop parachute landing and aviation safety.This research focuses on Qinghai-Xizang Plateau wind field simulation in boundary layer based on numerical ...
Yansong BAO, Lingxiao JI, Huan LI, Qifeng LU, Fu WANG   +4 more
doaj   +1 more source