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 …

Experimental insights into elasto-inertial transitions in Taylor–Couette flows

T Boulafentis, T Lacassagne… - … Transactions of the …, 2023 - royalsocietypublishing.org
Since the seminal work of Taylor in 1923, Taylor–Couette (TC) flow has served as a
paradigm to study hydrodynamic instabilities and bifurcation phenomena. Transitions of …

Polymer-doped two-dimensional turbulent flow to study the transition from Newtonian turbulence to elastic instability

K Fukushima, H Kishi, R Sago, H Suzuki, RJ Poole… - Physics of …, 2024 - pubs.aip.org
Detecting the flow regimes of Newtonian turbulence (NT), elasto-inertial filament (EIF),
elasto-inertial turbulence (EIT), and maximum drag reduction (MDR) of polymer solution and …

Coherent structures in plane channel flow of dilute polymer solutions with vanishing inertia

A Morozov - Physical Review Letters, 2022 - APS
When subjected to sufficiently strong velocity gradients, solutions of long, flexible polymers
exhibit flow instabilities and chaotic motion, often referred to as elastic turbulence. Its …

Vortex merging and splitting events in viscoelastic Taylor–Couette flow

JM Lopez - Journal of Fluid Mechanics, 2022 - cambridge.org
Recent experiments have reported a novel transition to elasto-inertial turbulence in the
Taylor–Couette flow of a dilute polymer solution. Unlike previously reported transitions, this …

[HTML][HTML] A review on free miscible buoyant jets

H Hassanzadeh, SM Taghavi - Physics of Fluids, 2024 - pubs.aip.org
Buoyant jets have been a topic of interest due to their presence in various natural and
industrial phenomena, as well as in our daily lives. Covering extensive literature, our focus …

Statistics and spectral analysis of turbulent duct flows with flexible and rigid polymer solutions

RS Mitishita, GJ Elfring, IA Frigaard - Journal of Non-Newtonian Fluid …, 2023 - Elsevier
We present an experimental investigation of turbulent drag reduction with flexible and rigid
polymer solutions in a 2: 1 aspect ratio rectangular duct. The flexible polymer is partially …

Turbulent planar wakes of viscoelastic fluids analysed by direct numerical simulations

MC Guimarães, FT Pinho, CB da Silva - Journal of Fluid Mechanics, 2022 - cambridge.org
Direct numerical simulations employing the finitely extensible nonlinear elastic constitutive
model closed with Peterlin's approximation (FENE-P) are used to investigate the far-field …

Turbulent drag reduction of viscoelastic wormlike micellar gels

RS Mitishita, GJ Elfring, IA Frigaard - Journal of Non-Newtonian Fluid …, 2022 - Elsevier
Long-chained, viscoelastic surfactant solutions (VES) have been widely employed in the oil
and gas industry, particularly in hydraulic fracturing and gravel-packing operations, where …

Spatiotemporal signatures of elastoinertial turbulence in viscoelastic planar jets

S Yamani, Y Raj, TA Zaki, GH McKinley… - Physical Review …, 2023 - APS
The interplay between viscoelasticity and inertia in dilute polymer solutions at high
deformation rates can result in inertioelastic instabilities. The nonlinear evolution of these …