Modeling subgrid-scale forces by spatial artificial neural networks in large eddy simulation of turbulence
Spatial artificial neural network (ANN) models are developed for subgrid-scale (SGS) forces
in the large eddy simulation (LES) of turbulence. The input features are based on the first …
in the large eddy simulation (LES) of turbulence. The input features are based on the first …
Subgrid-scale models of isotropic turbulence need not produce energy backscatter
A Vela-Martín - Journal of Fluid Mechanics, 2022 - cambridge.org
This investigation questions the importance of inverse interscale energy fluxes, the so-called
energy backscatter, for the modelling of the energy cascade in large-eddy simulations (LES) …
energy backscatter, for the modelling of the energy cascade in large-eddy simulations (LES) …
Two-point stress–strain-rate correlation structure and non-local eddy viscosity in turbulent flows
By analysing the Karman–Howarth equation for filtered-velocity fields in turbulent flows, we
show that the two-point correlation between the filtered strain-rate and subfilter stress …
show that the two-point correlation between the filtered strain-rate and subfilter stress …
Synchronizing subgrid scale models of turbulence to data
M Buzzicotti, P Clark Di Leoni - Physics of Fluids, 2020 - pubs.aip.org
Large eddy simulations of turbulent flows are powerful tools used in many engineering and
geophysical settings. Choosing the right value of the free parameters for their subgrid scale …
geophysical settings. Choosing the right value of the free parameters for their subgrid scale …
Spatio-temporal fluctuations of interscale and interspace energy transfer dynamics in homogeneous turbulence
HS Larssen, JC Vassilicos - Journal of Fluid Mechanics, 2023 - cambridge.org
We study fluctuations of all co-existing energy exchange/transfer/transport processes in
stationary periodic turbulence including those that average to zero and are not present in …
stationary periodic turbulence including those that average to zero and are not present in …
Research on quality control of precision machining straight internal gear by abrasive flow based on large eddy simulation
T Zou, Q Yan, L Wang, Y An, J Qu, J Li - The International Journal of …, 2022 - Springer
Traditional finishing technology is difficult to realize the precision machining of complex
geometric parts. Abrasive flow machining technology solves this problem well. Taking the …
geometric parts. Abrasive flow machining technology solves this problem well. Taking the …
Spatio‐temporal coarse‐graining decomposition of the global ocean geostrophic kinetic energy
We expand on a recent determination of the first global energy spectrum of the ocean's
surface geostrophic circulation (Storer et al., 2022, https://doi. org/10.1038/s41467-022 …
surface geostrophic circulation (Storer et al., 2022, https://doi. org/10.1038/s41467-022 …
Self-similar subgrid-scale models for inertial range turbulence and accurate measurements of intermittency
A class of spectral subgrid models based on a self-similar and reversible closure is studied
with the aim to minimize the impact of subgrid scales on the inertial range of fully developed …
with the aim to minimize the impact of subgrid scales on the inertial range of fully developed …
Why (Still) Studying Turbulence in Fluids and Plasmas?
Turbulence, a captivating and intricate phenomenon, continues to attract researchers across
diverse scientific disciplines. Despite considerable efforts, turbulence remains a fascinating …
diverse scientific disciplines. Despite considerable efforts, turbulence remains a fascinating …
Research on quality analysis of solid-liquid two-phase abrasive flow precision machining based on different sub-grid scale models
W Zhao, J Qu, J Li, N Su, G Shi, J Liu - The International Journal of …, 2022 - Springer
In the traditional precision and ultra-precision machining technology field, workpieces with
irregular internal curved surfaces tend to have no subsequent processing after basic …
irregular internal curved surfaces tend to have no subsequent processing after basic …