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 …

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 …

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 …

Dissipation-range fluid turbulence and thermal noise

D Bandak, N Goldenfeld, AA Mailybaev, G Eyink - Physical Review E, 2022 - APS
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 …

Self-attenuation of extreme events in Navier–Stokes turbulence

D Buaria, A Pumir, E Bodenschatz - Nature communications, 2020 - nature.com
Turbulent fluid flows are ubiquitous in nature and technology, and are mathematically
described by the incompressible Navier-Stokes equations. A hallmark of turbulence is …

Vorticity-strain rate dynamics and the smallest scales of turbulence

D Buaria, A Pumir - Physical Review Letters, 2022 - APS
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 …

[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 …

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 …

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 …

Twisting vortex lines regularize Navier-Stokes turbulence

D Buaria, JM Lawson, M Wilczek - Science Advances, 2024 - science.org
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 …