Circulation in quasi-2D turbulence: Experimental observation of the area rule and bifractality

HY Zhu, JH Xie, KQ Xia - Physical Review Letters, 2023 - APS
We present an experimental study of the velocity circulation in a quasi-two-dimensional
turbulent flow. We show that the area rule of circulation around simple loops holds in both …

Onset of three-dimensionality in electromagnetically driven thin-layer flows

DH Kelley, NT Ouellette - Physics of Fluids, 2011 - pubs.aip.org
Two-dimensional fluid flow is often approximated in the laboratory with thin
electromagnetically forced fluid layers. The faithfulness of such an experimental model must …

One-dimensional optimal system for 2D rotating ideal gas

A Paliathanasis - Symmetry, 2019 - mdpi.com
We derive the one-dimensional optimal system for a system of three partial differential
equations, which describe the two-dimensional rotating ideal gas with polytropic parameter …

Bifurcations in a quasi-two-dimensional Kolmogorov-like flow

J Tithof, B Suri, RK Pallantla, RO Grigoriev… - Journal of Fluid …, 2017 - cambridge.org
We present a combined experimental and theoretical study of the primary and secondary
instabilities in a Kolmogorov-like flow. The experiment uses electromagnetic forcing with an …

Turbulence decay rate as a measure of flow dimensionality

M Shats, D Byrne, H Xia - Physical review letters, 2010 - APS
The dimensionality of turbulence in fluid layers determines their properties. We study
electromagnetically driven flows in finite-depth fluid layers and show that eddy viscosity …

Velocity profile in a two-layer Kolmogorov-like flow

B Suri, J Tithof, R Mitchell, RO Grigoriev, MF Schatz - Physics of Fluids, 2014 - pubs.aip.org
In this article, we discuss flows in shallow, stratified horizontal layers of two immiscible fluids.
The top layer is an electrolyte which is electromagnetically driven and the bottom layer is a …

Lie Symmetry Analysis of the One-Dimensional Saint-Venant-Exner Model

A Paliathanasis - Symmetry, 2022 - mdpi.com
We present the Lie symmetry analysis for a hyperbolic partial differential system known as
the one-dimensional Saint-Venant-Exner model. The model describes shallow-water …

The vortex splitting process from interaction between a mesoscale vortex and two islands

M Ji, X Zheng, F Qiao, J Lu, H Liu, X Li - Dynamics of Atmospheres and …, 2024 - Elsevier
Mesoscale vortices are major carriers of oceanic material and energy transfer, transporting
large amounts of high-energy, temperature-anomalous water bodies during their movement …

Chaotic advection at large Péclet number: Electromagnetically driven experiments, numerical simulations, and theoretical predictions

A Figueroa, P Meunier, S Cuevas, E Villermaux… - Physics of …, 2014 - pubs.aip.org
We present a combination of experiment, theory, and modelling on laminar mixing at large
Péclet number. The flow is produced by oscillating electromagnetic forces in a thin …

Energy spectra and turbulence generation in the wake of magnetic obstacles

S Kenjereš - Physics of Fluids, 2012 - pubs.aip.org
Numerical simulations and analysis of flow and heat transfer of an electrically conducting
fluid past magnetic obstacles are reported. We studied the channel flow configuration with …