Results 11 to 20 of about 5,842,750 (244)

Deconvolutional artificial neural network models for large eddy simulation of turbulence [PDF]

, 2020
Deconvolutional artificial neural network (DANN) models are developed for subgrid-scale (SGS) stress in large eddy simulation (LES) of turbulence. The filtered velocities at different spatial points are used as input features of the DANN models to ...
Zelong Yuan, C. Xie, Jianchun Wang
semanticscholar   +1 more source

Large-Eddy Simulation of a microburst [PDF]

Atmospheric Chemistry and Physics, 2011
The three-dimensional structure and evolution of an isolated and stationary microburst are simulated using a time-dependent, high resolution Large-Eddy-Simulation (LES) model.
V. Anabor, U. Rizza, E. L. Nascimento, G. A. Degrazia   +3 more
doaj   +1 more source

Large Eddy Simulation of Film Cooling: A Review

Energies, 2022
Film cooling has dramatically contributed to the performance improvement of gas turbines, as it is a very effective cooling technique for gas turbines. Large eddy simulation (LES) began to be used in the study of film cooling 20 years ago, and meaningful
Joon Ahn
doaj   +1 more source

Aeroacoustic prediction based on large-eddy simulation and the Ffowcs Williams–Hawkings equation

Advances in Aerodynamics, 2022
A hybrid noise computation method is presented in this paper. Large-eddy simulation with wall-model equation is proposed to compute the flow field. With a stress-balanced wall-model equation, the near-wall computation cost of large eddy simulation was ...
Yufei Zhang, Yang Xiao, Ruihuan Liu, Haixin Chen   +3 more
doaj   +1 more source

Large Eddy Simulation of Hypersonic Turbulent Boundary Layers

Fluids, 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

Energies, 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

Energies, 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 Gas Explosions

Chemical Engineering Transactions, 2010
preview not available - see full-text PDF article.
V. Di Sarli, A. Di Benedetto, G. Russo
doaj   +1 more source

DPM: A deep learning PDE augmentation method (with application to large-eddy simulation) [PDF]

Journal of Computational Physics, 2019
Machine learning for scientific applications faces the challenge of limited data. We propose a framework that leverages a priori known physics to reduce overfitting when training on relatively small datasets.
J. Freund, J. MacArt, Justin A. Sirignano   +2 more
semanticscholar   +1 more source

Large eddy simulation of the tip-leakage cavitating flow with an insight on how cavitation influences vorticity and turbulence

, 2020
Cavitation within a tip leakage flow remains a challenging issue in a variety of axial hydraulic machines. It is still not possible nowadays to predict cavitation occurrence in such a flow with acceptable accuracy.
H.Y. Cheng, X. Bai, X. Long, Bin Ji, X. Peng, M. Farhat   +5 more
semanticscholar   +1 more source