[HTML][HTML] Lagrangian based methods for coherent structure detection

MR Allshouse, T Peacock - Chaos: An Interdisciplinary Journal of …, 2015 - pubs.aip.org
There has been a proliferation in the development of Lagrangian analytical methods for
detecting coherent structures in fluid flow transport, yielding a variety of qualitatively different …

A critical comparison of Lagrangian methods for coherent structure detection

A Hadjighasem, M Farazmand, D Blazevski… - … Journal of Nonlinear …, 2017 - pubs.aip.org
Coherent Lagrangian (material) structures are ubiquitous in unsteady fluid flows, often
observable indirectly from tracer patterns they create, for example, in the atmosphere and …

Detecting Lagrangian coherent structures from sparse and noisy trajectory data

S Mowlavi, M Serra, E Maiorino… - Journal of Fluid …, 2022 - cambridge.org
Many complex flows such as those arising from the collective motion of ocean plastics in
geophysics or motile cells in biology are characterized by sparse and noisy trajectory …

Extracting Lagrangian coherent structures in cardiovascular flows using Lagrangian descriptors

A Darwish, S Norouzi, G Di Labbio, L Kadem - Physics of Fluids, 2021 - pubs.aip.org
In cardiovascular flows, Lagrangian coherent structures have been used to explore the
skeleton of blood transport. Revealing these transport barriers is instrumental to quantify the …

Sensitivity of Lagrangian coherent structure identification to flow field resolution and random errors

AB Olcay, TS Pottebaum, PS Krueger - Chaos: An Interdisciplinary …, 2010 - pubs.aip.org
The effect of spatial and temporal resolutions and random errors on identification of
Lagrangian coherent structures (LCSs) from Eulerian velocity fields is evaluated using two …

Generalized Lagrangian coherent structures

S Balasuriya, NT Ouellette, II Rypina - Physica D: Nonlinear Phenomena, 2018 - Elsevier
The notion of a Lagrangian Coherent Structure (LCS) is by now well established as a way to
capture transient coherent transport dynamics in unsteady and aperiodic fluid flows that are …

How sensitive are Lagrangian coherent structures to uncertainties in data?

A Badza, TW Mattner, S Balasuriya - Physica D: Nonlinear Phenomena, 2023 - Elsevier
Lagrangian coherent structures (LCSs) are time-varying entities which capture the most
influential transport features of a flow. These can for example identify groups of particles …

[HTML][HTML] Identifying finite-time coherent sets from limited quantities of Lagrangian data

MO Williams, II Rypina, CW Rowley - Chaos: An Interdisciplinary …, 2015 - pubs.aip.org
A data-driven procedure for identifying the dominant transport barriers in a time-varying flow
from limited quantities of Lagrangian data is presented. Our approach partitions state space …

[HTML][HTML] Introduction to focus issue: Lagrangian coherent structures

T Peacock, J Dabiri - Chaos: An Interdisciplinary Journal of Nonlinear …, 2010 - pubs.aip.org
The topic of Lagrangian coherent structures (LCS) has been a rapidly growing area of
research in nonlinear dynamics for almost a decade. It provides a means to rigorously define …

Coherent structure colouring: identification of coherent structures from sparse data using graph theory

KL Schlueter-Kuck, JO Dabiri - Journal of Fluid Mechanics, 2017 - cambridge.org
We present a frame-invariant method for detecting coherent structures from Lagrangian flow
trajectories that can be sparse in number, as is the case in many fluid mechanics …