Results 11 to 20 of about 52,645 (193)

Three-Dimensional LiDAR Wake Measurements in an Offshore Wind Farm and Comparison with Gaussian and AL Wake Models

open access: yesEnergies, 2021
Huaneng Rudong 300 MW offshore wind farm project is located in eastern China. The wake effect is one of the major concerns for wind farm operators, as all 70 units are plotted in ranks, and the sea surface roughness is low.
Xin Liu   +5 more
doaj   +1 more source

Numerical simulation of flow separation over a backward-facing step with high Reynolds number

open access: yesWater Science and Engineering, 2019
Large eddy simulation (LES) explicitly calculates the large-scale vortex field and parameterizes the small-scale vortices. In this study, LES and κ-ε models were developed for a specific geometrical configuration of backward-facing step (BFS).
Fang-fang Wang   +2 more
doaj   +1 more source

Anisotropic eddy-viscosity concept for strongly detached unsteady flows [PDF]

open access: yes, 2007
The accurate prediction of the flow physics around bodies at high Reynolds number is a challenge in aerodynamics nowadays. In the context of turbulent flow modeling, recent advances like large eddy simulation (LES) and hybrid methods [detached eddy ...
Bouhadji A.   +10 more
core   +2 more sources

Computational fluid dynamics simulation of detonation wave propagation in modified pulse detonation combustor [PDF]

open access: yesE3S Web of Conferences, 2023
In this paper effect of Schelkin spiral material on thermal load and detonation combustion wave propagation in pulse detonation combustor has been simulated.
Debnath Pinku, Pandey K.M.
doaj   +1 more source

Numerical Simulation of Wind Turbine Aerodynamic Characteristics under Wind Shear Based on Lattice-Boltzmann Method [PDF]

open access: yesE3S Web of Conferences, 2021
In order to study the influence of wind shear on the aerodynamic characteristics of large wind turbines, taking the 5MW wind turbine blade model published by NREL as the research object, large eddy simulation (LES) of wind turbines was carried out by ...
Yuan Chengdong   +4 more
doaj   +1 more source

Dynamic Procedure for Filtered Gyrokinetic Simulations [PDF]

open access: yes, 2011
Large Eddy Simulations (LES) of gyrokinetic plasma turbulence are investigated as interesting candidates to decrease the computational cost. A dynamic procedure is implemented in the GENE code, allowing for dynamic optimization of the free parameters of ...
Albrecht-Marc, Michel   +6 more
core   +1 more source

A new numerical framework for large-eddy simulation of waves generated by objects piercing water surface

open access: yesTheoretical and Applied Mechanics Letters, 2019
A novel numerical framework is developed for large-eddy simulation (LES) of interactions among air, water, and solid bodies. The motions of air and water are solved on a fixed block-structured mesh, with the air–water interface captured using the volume ...
Zixuan Yang, Zuo Cui, Shizhao Wang
doaj   +1 more source

Assessment of LES Dynamic Smagorinsky-Lilly model resolution for combustion engineering applications

open access: yesDyna, 2023
Large Eddy Simulation (LES) has become a powerful tool for dealing with turbulence. Nevertheless, mesh resolution of the simulated domain under the LES approach was shown to be a key matter.
Yaniel Garcia-Lovella   +3 more
doaj   +1 more source

Vertical Eddy Diffusivity Parameterization Based on a Large‐Eddy Simulation and Its Impact on Prediction of Hurricane Landfall

open access: yesGeophysical Research Letters, 2021
The vertical eddy diffusivity (VED) in the planetary boundary layer (PBL) affects tropical cyclones' structure and evolution. Uncertainties of VED in the PBL parametrization scheme of a mesoscale model could be caused by the model's inability to ...
Xin Li, Zhaoxia Pu
doaj   +1 more source

Numerical Modelling of Round Impinging Jet Heat Transfer Using Scale-Resolving-Simulation Methods: Influence of Local Grid Refinement [PDF]

open access: yesMATEC Web of Conferences, 2020
An accurate prediction of heat transfer is crucial in many engineering applications and a typical representative is heat transfer of impinging jets. The present study addresses numerical simulations using three Scale-Resolving-Simulation methods, namely ...
Kořínek Tomáš, Tisovský Tomáš
doaj   +1 more source

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