Results 21 to 30 of about 286,632 (317)

Large Eddy Simulation of Compressible Transitional Cascade Flows

open access: yesJournal of Fluid Science and Technology, 2007
Large-eddy simulation of compressible transitional flows in a low-pressure turbine cascade is performed by a 6th-order compact finite-difference and 10th-order filtering method.
Kazuo MATSUURA, Chisachi KATO
doaj   +1 more source

Application of Large Eddy Simulation in the process of the Multi-Physics Field Coupling in a Combustion Chamber

open access: yesMATEC Web of Conferences, 2015
Numerical simulation is the main method to solve turbulence problems. As one of the three methods which are commonly used in large-eddy simulation model (LES) is the most effective and promising research method. The basic idea of large-eddy simulation is
Xu Rang-Shu, Wang Kai, Xu Long, Yu Xin
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

Large Eddy Simulation of Combustion for High-Speed Airbreathing Engines

open access: yesAerospace, 2022
Large Eddy Simulation (LES) has rapidly developed into a powerful computational methodology for fluid dynamic studies, between Reynolds-Averaged Navier–Stokes (RANS) and Direct Numerical Simulation (DNS) in both accuracy and cost.
Christer Fureby   +3 more
doaj   +1 more source

Large Eddy Simulation (LES) for IC Engine Flows

open access: yesOil & Gas Science and Technology, 2013
Numerical computations are carried out using an engineering-level Large Eddy Simulation (LES) model that is provided by a commercial CFD code CONVERGE.
Kuo Tang-Wei   +3 more
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

Validation study for Large-Eddy Simulation of Forest Flow [PDF]

open access: yesE3S Web of Conferences, 2020
The publication presents Large-Eddy Simulation (LES) of flow over a reduced-scale wind tunnel model of a forest canopy. The final aim of the study is to determine factors responsible for damage in forests by strong winds.
Pitchurov George   +3 more
doaj   +1 more source

When Does Eddy Viscosity Damp Subfilter Scales Sufficiently? [PDF]

open access: yes, 2011
Large eddy simulation (LES) seeks to predict the dynamics of spatially filtered turbulent flows. The very essence is that the LES-solution contains only scales of size ≥Δ, where Δ denotes some user-chosen length scale. This property enables us to perform
Verstappen, Roel   +6 more
core   +1 more source

Simulation of three-dimensional homogeneous isotropic turbulence using the moment-based lattice Boltzmann method and LES-lattice Boltzmann method

open access: yesJournal of Fluid Science and Technology, 2014
Three-dimensional homogeneous isotropic turbulence simulations are conducted using moment-based lattice Boltzmann method and the large-eddy simulation based lattice Boltzmann method.
Muhammad IZHAM   +2 more
doaj   +1 more source

Large eddy simulation of sediment transport over rippled beds [PDF]

open access: yesNonlinear Processes in Geophysics, 2014
Wave-induced boundary layer (BL) flows over sandy rippled bottoms are studied using a numerical model that applies a one-way coupling of a "far-field" inviscid flow model to a "near-field" large eddy simulation (LES) Navier–Stokes (NS) model.
J. C. Harris, S. T. Grilli
doaj   +1 more source

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