Multiscale velocity gradients in turbulence
PL Johnson, M Wilczek - Annual Review of Fluid Mechanics, 2024 - annualreviews.org
Understanding and predicting turbulent flow phenomena remain a challenge for both theory
and applications. The nonlinear and nonlocal character of small-scale turbulence can be …
and applications. The nonlinear and nonlocal character of small-scale turbulence can be …
Turbulence theories and statistical closure approaches
Y Zhou - Physics Reports, 2021 - Elsevier
When discussing research in physics and in science more generally, it is common to ascribe
equal importance to the three components of the scientific trinity: theoretical, experimental …
equal importance to the three components of the scientific trinity: theoretical, experimental …
Forecasting small-scale dynamics of fluid turbulence using deep neural networks
D Buaria, KR Sreenivasan - Proceedings of the National …, 2023 - National Acad Sciences
Turbulence in fluid flows is characterized by a wide range of interacting scales. Since the
scale range increases as some power of the flow Reynolds number, a faithful simulation of …
scale range increases as some power of the flow Reynolds number, a faithful simulation of …
Dissipation-range fluid turbulence and thermal noise
We revisit the issue of whether thermal fluctuations are relevant for incompressible fluid
turbulence and estimate the scale at which they become important. As anticipated by …
turbulence and estimate the scale at which they become important. As anticipated by …
Self-attenuation of extreme events in Navier–Stokes turbulence
Turbulent fluid flows are ubiquitous in nature and technology, and are mathematically
described by the incompressible Navier-Stokes equations. A hallmark of turbulence is …
described by the incompressible Navier-Stokes equations. A hallmark of turbulence is …
Vorticity-strain rate dynamics and the smallest scales of turbulence
Building upon the intrinsic properties of Navier-Stokes dynamics, namely the prevalence of
intense vortical structures and the interrelationship between vorticity and strain rate, we …
intense vortical structures and the interrelationship between vorticity and strain rate, we …
[HTML][HTML] Inter-stage performance and energy characteristics analysis of electric submersible pump based on entropy production theory
H Wang, Y Yang, B **, WD Shi, C Wang, LL Ji… - Petroleum Science, 2024 - Elsevier
The electric submersible pump (ESP) is a crucial apparatus utilized for lifting in the oil
extraction process. Its lifting capacity is enhanced by the multi-stage tandem structure, but …
extraction process. Its lifting capacity is enhanced by the multi-stage tandem structure, but …
Dissipation range of the energy spectrum in high Reynolds number turbulence
D Buaria, KR Sreenivasan - Physical Review Fluids, 2020 - APS
We seek to understand the kinetic energy spectrum in the dissipation range of fully
developed turbulence. The data are obtained by direct numerical simulations (DNS) of …
developed turbulence. The data are obtained by direct numerical simulations (DNS) of …
Advancing understanding of turbulence through extreme-scale computation: Intermittency and simulations at large problem sizes
PK Yeung, K Ravikumar - Physical Review Fluids, 2020 - APS
Sustained and rapid advances in computing have enabled the conduct of direct numerical
simulations (DNS) at increasing problem sizes and higher levels of physical realism, which …
simulations (DNS) at increasing problem sizes and higher levels of physical realism, which …
Twisting vortex lines regularize Navier-Stokes turbulence
Fluid flows are intrinsically characterized via the topology and dynamics of underlying vortex
lines. Turbulence in common fluids like water and air, mathematically described by the …
lines. Turbulence in common fluids like water and air, mathematically described by the …