Results 1 to 10 of about 375 (167)

A Dynamic Smagorinsky Model for Horizontal Turbulence Parameterization in Tropical Cyclone Simulation

open access: yesGeophysical Research Letters
The horizontal turbulence parameterization is vital for the intensity and structure forecasting of tropical cyclone (TC) in numerical weather prediction (NWP) models.
Xu Zhang, Qijun Huang, Yulong Ma
doaj   +3 more sources

Enhancing smoothed particle hydrodynamics for turbulent flow simulation: implementation of the dynamic Smagorinsky model

open access: yesEngineering Applications of Computational Fluid Mechanics
This study focuses on advancing the Smoothed Particle Hydrodynamics (SPH) method to achieve a more accurate simulation of turbulent flows. SPH is a Lagrangian-based mesh-free method that is widely used in fluid dynamics because of its adaptability to ...
Efstathios Chatzoglou   +2 more
doaj   +4 more sources

Large eddy simulation of a turbulent channel flow using dynamic Smagorinsky subgrid scale model and differential equation wall model

open access: yesInternational Journal of Thermofluids
A large eddy simulation (LES) is conducted in a plane channel flow which is turbulent. For understanding the mechanism of the turbulent motion more efficiently, the present study is an attempt to conduct the LES using a Dynamic Smagorinsky Model (DSM ...
Mohammad Azizul Hoque   +4 more
doaj   +4 more sources

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   +2 more sources

Noise characteristic analysis and sound sources identification for rod–airfoil interaction using different subgrid-scale models [PDF]

open access: yesE3S Web of Conferences, 2021
Four subgrid-scale models based on large eddy simulation (LES), such as Smagorinsky–Lilly (SL), dynamic Smagorinsky–Lilly (DSL), wall-adapting local eddy-viscosity (WALE), and dynamic kinetic-energy transport (KET) were used and couple Ffowcs Williams ...
Yang Chenghao, Feng Heying, Peng Yehui
doaj   +1 more source

Artificial neural network-based subgrid-scale models for LES of compressible turbulent channel flow

open access: yesTheoretical and Applied Mechanics Letters, 2023
Fully connected neural networks (FCNNs) have been developed for the closure of subgrid-scale (SGS) stress and SGS heat flux in large-eddy simulations of compressible turbulent channel flow.
Qingjia Meng, Zhou Jiang, Jianchun Wang
doaj   +1 more source

Application of a Local Dynamic Model of Large Eddy Simulation to a Marine Propeller Wake

open access: yesApplied Sciences, 2023
With recent development of computer technology, the use of large eddy simulation method to solve industrial problems is gaining acceptance. From a theoretical and applied perspective, a local dynamic k-equation subgrid-scale model is applied to study the
Lien Young, Xing Zheng
doaj   +1 more source

Calculation of External Vehicle Aerodynamic Noise Based on LES Subgrid Model

open access: yesEnergies, 2020
A dynamic Smagorinsky–Lilly model (DSLM) subgrid model on the basis of the Smagorinsky–Lilly subgrid model (SLM) was introduced in the OpenFOAM software.
Xingjun Hu   +6 more
doaj   +1 more source

Fourier neural operator approach to large eddy simulation of three-dimensional turbulence

open access: yesTheoretical and Applied Mechanics Letters, 2022
Fourier neural operator (FNO) model is developed for large eddy simulation (LES) of three-dimensional (3D) turbulence. Velocity fields of isotropic turbulence generated by direct numerical simulation (DNS) are used for training the FNO model to predict ...
Zhijie Li   +3 more
doaj   +1 more source

A Differential Subgrid Stress Model and Its Assessment in Large Eddy Simulations of Non-Premixed Turbulent Combustion

open access: yesApplied Sciences, 2022
We present a new subgrid stress model for the large eddy simulation of turbulent flows based on the solution of transport equations for stress tensor components.
Roman Balabanov   +4 more
doaj   +1 more source

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