Results 11 to 20 of about 12,287 (261)

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

Large-Eddy Simulation of Contrails [PDF]

open access: yesJournal of the Atmospheric Sciences, 1998
Numerical simulations of contrails have been performed to investigate the role of various external parameters and physical processes in the life cycle of contrails. The general idea underlying the model is that of a largeeddy model. The model explicitly represents the large-scale three-dimensional motions (10-m grid resolution), while small-scale ...
openaire   +2 more sources

Large eddy simulations in astrophysics [PDF]

open access: yesLiving Reviews in Computational Astrophysics, 2015
Abstract In this review, the methodology of large eddy simulations (LES) is introduced and applications in astrophysics are discussed. As theoretical framework, the scale decomposition of the dynamical equations for compressible neutral fluids by means of spatial filtering is explained.
openaire   +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

Study on lattice Boltzmann method/large eddy simulation and its application at high Reynolds number flow

open access: yesAdvances in Mechanical Engineering, 2015
Lattice Boltzmann method combined with large eddy simulation is developed in the article to simulate fluid flow at high Reynolds numbers. A subgrid model is used as a large eddy simulation model in the numerical simulation for high Reynolds flow.
Haiqing Si, Yan Shi
doaj   +1 more source

Large Eddy Simulation of Yawed Wind Turbine Wake Deformation

open access: yesEnergies, 2022
Wind turbine wake redirection drawn by a yaw control has been proposed as a strategy to improve the performance of wind farms. However, the characteristics and the development of the curled wake structure deformed by the yaw action of the rotor are not ...
Hyebin Kim, Sang Lee
doaj   +1 more source

Large eddy simulation of high atwood number rayleigh-taylor mixing [PDF]

open access: yesE3S Web of Conferences, 2019
Large eddy simulation of Rayleigh-Taylor instability at high Atwood numbers is performed using recently developed, kinetic energy-conserving, non-dissipative, fully-implicit, finite volume algorithm.
Yilmaz Ilyas
doaj   +1 more source

Pressure fluctuation prediction in pump mode using large eddy simulation and unsteady Reynolds-averaged Navier–Stokes in a pump–turbine

open access: yesAdvances in Mechanical Engineering, 2016
For pump–turbines, most of the instabilities couple with high-level pressure fluctuations, which are harmful to pump–turbines, even the whole units. In order to understand the causes of pressure fluctuations and reduce their amplitudes, proper numerical ...
De-You Li   +5 more
doaj   +1 more source

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