Space-time correlations and dynamic coupling in turbulent flows

G He, G Jin, Y Yang - Annual Review of Fluid Mechanics, 2017 - annualreviews.org
Space-time correlation is a staple method for investigating the dynamic coupling of spatial
and temporal scales of motion in turbulent flows. In this article, we review the space-time …

Space-time correlations in turbulent flow: A review

JM Wallace - Theoretical and applied mechanics letters, 2014 - Elsevier
This paper reviews some of the principal uses, over almost seven decades, of correlations,
in both Eulerian and Lagrangian frames of reference, of properties of turbulent flows at …

Dynamic nonlinear algebraic models with scale-similarity dynamic procedure for large-eddy simulation of turbulence

Z Yuan, Y Wang, C Xie, J Wang - Advances in Aerodynamics, 2022 - Springer
A dynamic nonlinear algebraic model with scale-similarity dynamic procedure (DNAM-SSD)
is proposed for subgrid-scale (SGS) stress in large-eddy simulation of turbulence. The …

Density-unweighted subgrid-scale models for large-eddy simulations of compressible turbulence

C Zhang, Z Yuan, Y Wang, R Zhang, J Wang - Physics of Fluids, 2022 - pubs.aip.org
Density-unweighted methods in large-eddy simulations (LES) of turbulence have received
little attention, and the modeling of unclosed terms using density-unweighted methods even …

Thirty years of turbulence study in China

B Sun - Applied Mathematics and Mechanics, 2019 - Springer
This paper provides a comprehensive introduction to the major progress in transition and
turbulence studies in China over the past thirty years. Despite the author's best efforts, there …

Subgrid-scale modelling using deconvolutional artificial neural networks in large eddy simulations of chemically reacting compressible turbulence

J Teng, Z Yuan, J Wang - International Journal of Heat and Fluid Flow, 2022 - Elsevier
Based on the framework of deconvolutional artificial neural network (DANN) proposed by
Yuan et al.[DOI: https://doi. org/10.1063/5.0027146], we extend the DANN approach to …

A nonlinear model for the subgrid timescale experienced by heavy particles in large eddy simulation of isotropic turbulence with a stochastic differential equation

G Jin, GW He - New Journal of Physics, 2013 - iopscience.iop.org
The effects of subgrid scale (SGS) motions on the dispersion of heavy particles raise a
challenge to the large-eddy method of simulation (LES). As a necessary first step, we …

Short-time evolution of Lagrangian velocity gradient correlations in isotropic turbulence

L Fang, WJT Bos, GD Jin - Physics of Fluids, 2015 - pubs.aip.org
We show by direct numerical simulation (DNS) that the Lagrangian cross correlation of
velocity gradients in homogeneous isotropic turbulence increases at short times, whereas its …

Qian Jian (1939–2018) and his contribution to small-scale turbulence studies

JZ Shi - Physics of Fluids, 2021 - pubs.aip.org
Qian (Tsien) Jian (1939–2018), a Chinese theoretical physicist and fluid dynamicist, devoted
the second part of his scientific life to the physical understanding of small-scale turbulence to …

Large-eddy simulation of turbulent preferential concentration and collision of bidisperse heavy particles in isotropic turbulence

J Chen, G Jin - Powder technology, 2017 - Elsevier
Particle-laden turbulent flows are ubiquitous in natural and engineering flows. The
preferential concentration and pair-statistics of heavy particles at small and intermediate …