On the role of vorticity stretching and strain self-amplification in the turbulence energy cascade

PL Johnson - Journal of Fluid Mechanics, 2021 - cambridge.org
The tendency of turbulent flows to produce fine-scale motions from large-scale energy
injection is often viewed as a scale-wise cascade of kinetic energy driven by vorticity …

Assessment of the wall-adapting local eddy-viscosity model in transitional boundary layer

M Kim, J Lim, S Kim, S Jee, D Park - Computer Methods in Applied …, 2020 - Elsevier
The main idea of this manuscript is to assess the wall-adapting local eddy-viscosity (WALE)
model, which is designed for large-eddy simulation (LES) of turbulent boundary layer, in …

A-priori evaluation of data-driven models for large-eddy simulations in Rayleigh–Bénard convection

L Liu, C Lav, RD Sandberg - International Journal of Heat and Fluid Flow, 2024 - Elsevier
Natural convection is a commonly occurring heat-transfer problem in many industrial flows
and its prediction with conventional large eddy simulations (LES) at higher Rayleigh …

Subgrid-scale model based on the vorticity gradient tensor for rotating turbulent flows

H Qi, X Li, C Yu - Acta Mechanica Sinica, 2020 - Springer
A new subgrid-scale (SGS) stress model is proposed for rotating turbulent flows, and the
new model is based on the traceless symmetric part of the square of the velocity gradient …

Physics-based turbulence models for large-eddy simulation: Theory and application to rotating turbulent flows

MH Silvis - 2020 - research.rug.nl
Fluid flows are everywhere. Consider, for example, rivers, the flow of air in the atmosphere
and the blood that is flowing through our veins. Most fluid flows are very chaotic, or turbulent …

A nonlinear subgrid-scale model for large-eddy simulations of rotating turbulent flows

MH Silvis, HJ Bae, FX Trias, M Abkar… - arXiv preprint arXiv …, 2019 - arxiv.org
Rotating turbulent flows form a challenging test case for large-eddy simulation (LES). We,
therefore, propose and validate a new subgrid-scale (SGS) model for such flows. The …

[PDF][PDF] A-priori evaluation of data-driven models for large-eddy simulations in natural convection

L Liu, C Lav, R Sandberg - 2020 - researchgate.net
Natural convection is a commonly occurring heat-transfer problem in many industrial flows
and its prediction with conventional large eddy simulations (LES) at higher Rayleigh …