How sensitive are Lagrangian coherent structures to uncertainties in data?

A Badza, TW Mattner, S Balasuriya - Physica D: Nonlinear Phenomena, 2023 - Elsevier
… exponent, hyperbolic variational LCSs, Lagrangian averaged vorticity deviation, Lagrangian
… operator, fuzzy c-means clustering and coherent structure colouring. The investigations are …

[HTML][HTML] An improved numerical method for hyperbolic Lagrangian Coherent Structures using Differential Algebra

J Tyler, A Wittig - Journal of Computational Science, 2022 - Elsevier
… of hyperbolic Lagrangian Coherent Structures using … system, such as variational equations
or explicit derivatives. … accuracy of the Lagrangian Coherent Structures identified compared to …

[HTML][HTML] Hyperbolic covariant coherent structures in two dimensional flows

G Conti, G Badin - Fluids, 2017 - mdpi.com
coherent structures, are … of coherent structures is a variational theory that considers the
extremum properties of a specific repulsion rate function [25,37,38,39,40,41,42]. Using this theory, …

Computing hyperbolic Lagrangian coherent structures in three-dimensional flows from their variational theory

S Nordgreen - 2018 - ntnuopen.ntnu.no
… Nordam, considering interpolator performance in relation to identification of hyperbolic
Lagrangian coherent structures (LCSs) in two dimensions, Tor approached me and fellow student …

A geometric heat-flow theory of Lagrangian coherent structures

D Karrasch, J Keller - Journal of Nonlinear Science, 2020 - Springer
… We consider Lagrangian coherent structures (LCSs) as the boundaries of material subsets
whose advective evolution is metastable under weak diffusion. For their detection, we first …

Computing Hyperbolic Lagrangian Coherent Structures in Three-Dimensional Flow Systems

AMT Løken - 2018 - ntnuopen.ntnu.no
… , closely followed by a presentation of the Lagrangian coherent structures we … variation of
the method of geodesic level sets to compute three-dimensional Lagrangian coherent structures

[PDF][PDF] Variational Approach to Lagrangian Coherent Structures in Three-Dimensional Unsteady Flows

D Öttinger - 2017 - research-collection.ethz.ch
… In Chapter 3, we review the available definitions of hyperbolic and elliptic LCSs in three-…
In the present study, we seek elliptic Lagrangian Coherent Structures as pointwise near-…

Lagrangian coherent structures in the mediterranean sea: Seasonality and basin regimes

D Antivachis, V Vervatis, S Sofianos - Progress in Oceanography, 2023 - Elsevier
… the framework of lagrangian coherent structures to analyse the … in order to investigate the
lagrangian regimes that affect the motion… In addition to the hyperbolic structures detected by the …

Lagrangian coherent structures in the Rijeka Bay current field

S Ivić, I Mrša Haber, T Legović - Acta Adriatica, 2017 - hrcak.srce.hr
… The simulated onemonth sea surface velocity field of Rijeka Bay was analyzed using
Lagrangian coherent structures (LCSs) to assess the diffusion and chaotic advection of passive …

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 …