Results 61 to 70 of about 6,939 (199)

Embedded LES modelling of atmospheric boundary layer in urban region using accelerated turbulence generation

open access: yesEngineering Applications of Computational Fluid Mechanics
A novel development of Embedded Large Eddy Simulation (ELES) model was proposed for urban wind field simulations, incorporating the synthetic volume force method integrated with the Graphic Processing Unit (GPU) parallel computing.
Sunce Liao   +7 more
doaj   +1 more source

Wind-structure interaction simulations for the prediction of ovalling vibrations in silo groups [PDF]

open access: yes, 2013
Wind-induced ovalling vibrations were observed during a storm in October 2002 on several empty silos of a closely spaced group consisting of 8 by 5 thin-walled silos in the port of Antwerp (Belgium).
Degrande, Geert   +4 more
core   +1 more source

Unsteady numerical simulation of the flow in the U9 Kaplan turbine model [PDF]

open access: yes, 2014
The Reynolds-averaged Navier-Stokes equations with the RNG k-ε turbulence model closure are utilized to simulate the unsteady turbulent flow throughout the whole flow passage of the U9 Kaplan turbine model.
Javadi, Ardalan, Nilsson, Håkan
core   +1 more source

Model-Invariant Hybrid RANS-LES Computations on Unstructured Meshes [PDF]

open access: yes
Hybrid RANS-LES computations combine the bene ts of RANS and LES so that LES is used in regions where the accuracy of RANS deteriorates. The numerous hybrid approaches are limited by the speci cation of the LES-RANS interface, which can cause nonphysical
Sreekanth, R., Woodruff, Stephen L.
core   +1 more source

Hybrid RANS/LES of round impinging jets

open access: yesJournal of Physics: Conference Series, 2011
Fluid flow and heat transfer characteristics are presented for simulations of round impinging jets at two nozzle-plate distances H/D = 2 and 10 (D is the nozzle exit diameter) and two Reynolds numbers Re = 5000 and 70,000 with hybrid RANS/LES (Reynolds-averaged Navier-Stokes/Large Eddy Simulation), dynamic Smagorinsky LES and RANS k−ω models. Three k−ω
Slawomir Kubacki   +2 more
openaire   +1 more source

THE IMPLEMENTATION OF HYBRID METHODS FOR NUMERICAL SIMULATION FLOW ANALYSIS AROUND AN AIRCRAFT WITH THE USE OF OpenFOAM SOFTWARE PACKAGE

open access: yesНаучный вестник МГТУ ГА, 2016
The article describes the possibility of implementing the open source CFD software package OpenFOAM for aerodynamic characteristics calculation of aircraft taking into account the local turbulence flows.
A. S. Epikhin, V. T. Kalugin
doaj  

Simulation of a sonic jet injected into a supersonic cross-flow [PDF]

open access: yes, 2007
A hybrid RANS–LES approach is used to simulate the evolution of a sonic underexpanded transverse 4mm diameter round air jet injected into a Mach 1.6 air cross-flow.
Higgins, K., Schmidt, S.
core  

Wall-Modeled Lattice Boltzmann and Navier-Stokes Approaches for Separated Flows [PDF]

open access: yes
Lattice Boltzmann (LB) and hybrid Reynolds-averaged Navier-Stokes/large eddy simulation (RANS/LES) methods within the Launch Ascent and Vehicle Aerodynamics (LAVA) solver framework are applied to NASA's Revolutionary Computational Aerosciences (RCA ...
Barad, Michael   +6 more
core   +1 more source

Continuous Eddy Simulation (CES) of Transonic Shock-Induced Flow Separation

open access: yesApplied Sciences
Reynolds-averaged Navier–Stokes (RANS), large eddy simulation (LES), and hybrid RANS-LES, first of all wall-modeled LES (WMLES) and detached eddy simulation (DES) methods, are regularly applied for wall-bounded turbulent flow simulations.
Adeyemi Fagbade, Stefan Heinz
doaj   +1 more source

Hybrid RANS/LES of plane jets impinging on a flat plate at small nozzle-plate distances

open access: yesArchives of Mechanics, 2013
A k-ω based hybrid RANS/LES (Reynolds-averaged Navier-Stokes/large eddy simulation) model is tested for simulation of plane impinging jets at various nozzle-plate distances (H/B, where H is the distance and B is the slot's width) and various Reynolds ...
S. Kubacki   +4 more
doaj   +1 more source

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