Lagrangian coherent structures

SC Shadden - Transport and mixing in laminar flows: from …, 2011 - Wiley Online Library
Mounting evidence suggests that fluid advection can effectively be studied by considering
special material surfaces, which are referred to here as Lagrangian coherent structures …

Oceanic three-dimensional Lagrangian coherent structures: A study of a mesoscale eddy in the Benguela upwelling region

JH Bettencourt, C López, E Hernández-García - Ocean Modelling, 2012 - Elsevier
We study three dimensional (3D) oceanic Lagrangian coherent structures (LCSs) in the
Benguela upwelling region obtained from an output of the regional ocean modeling system …

Finite-time Lyapunov exponents in the instantaneous limit and material transport

PJ Nolan, M Serra, SD Ross - Nonlinear Dynamics, 2020 - Springer
Lagrangian techniques, such as the finite-time Lyapunov exponent (FTLE) and hyperbolic
Lagrangian coherent structures, have become popular tools for analyzing unsteady fluid …

Detecting vortex formation and shedding in cylinder wakes using Lagrangian coherent structures

MP Rockwood, K Taira, MA Green - AIAA journal, 2017 - arc.aiaa.org
The wake behind a circular cylinder is studied to investigate the complex vortex shedding
physics in the near-wake region. Both the Q criterion and a Lagrangian coherent structure …

Lagrangian coherent structures are associated with fluctuations in airborne microbial populations

P Tallapragada, SD Ross, DG Schmale - Chaos: An Interdisciplinary …, 2011 - pubs.aip.org
Many microorganisms are advected in the lower atmosphere from one habitat to another
with scales of motion being hundreds to thousands of kilometers. The concentration of these …

Transport of nitric oxide via Lagrangian coherent structures into the top of the polar vortex

VL Harvey, S Datta‐Barua… - Journal of …, 2021 - Wiley Online Library
The energetic particle precipitation (EPP) indirect effect (IE) refers to the downward transport
of reactive odd nitrogen (NOx= NO+ NO2) produced by EPP (EPP‐NOx) from the polar …

Quantification of the blood mixing in the left ventricle using finite time Lyapunov exponents

MG Badas, F Domenichini, G Querzoli - Meccanica, 2017 - Springer
Thrombus formation is one of the major complications in myocardial infarction. One of the
causes is known to be the regional hemostasis, ie the presence of zones where the …

Mesi: A multiparameter eddy significance index

HL Roman‐Stork, DA Byrne… - Earth and Space …, 2023 - Wiley Online Library
In this study, we introduce the Multiparameter Eddy Significance Index (MESI) for use in
conjunction with mesoscale eddy tracking to estimate the impact of mesoscale eddies on the …

Characterization of coherent structures in three-dimensional turbulent flows using the finite-size Lyapunov exponent

JH Bettencourt, C López… - Journal of Physics A …, 2013 - iopscience.iop.org
In this paper, we use the finite-size Lyapunov exponent (FSLE) to characterize Lagrangian
coherent structures in three-dimensional (3D) turbulent flows. Lagrangian coherent …

Atmospheric Transport Structures Shaping the “Godzilla” Dust Plume

A Jarvis, AH Mardi, H Foroutan, SD Ross - Atmospheric Environment, 2024 - Elsevier
Saharan dust events, having great ecological and environmental impacts, are the largest
producers of the world's dust by far. Identifying the mechanisms by which the dust is …