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 …

PIV experiments and CFD simulations of liquid–liquid mixing in a planetary centrifugal mixer (PCM)

B Shen, X Zhan, Z Sun, Y He, J Long, X Li - Chemical Engineering Science, 2022 - Elsevier
A new type of blade-free mixer, the planetary centrifugal mixer (PCM), has recently attracted
widespread interest. The aim of this study was to simulate the macromixing and micromixing …

[HTML][HTML] Computational study of three-dimensional Lagrangian transport and mixing in a stirred tank reactor

C Weiland, E Steuwe, J Fitschen, M Hoffmann… - Chemical engineering …, 2023 - Elsevier
The detection of compartments and dead zones as well as the estimation of the mixing
efficiency in stirred tanks are of vital interest for a variety of biochemical and chemical …

Lagrangian approach for modal analysis of fluid flows

VJ Shinde, DV Gaitonde - Journal of Fluid Mechanics, 2021 - cambridge.org
Common modal decomposition techniques for flow-field analysis, data-driven modelling and
flow control, such as proper orthogonal decomposition and dynamic mode decomposition …

Lagrangian coherent track initialization

AR Khojasteh, Y Yang, D Heitz, S Laizet - Physics of Fluids, 2021 - pubs.aip.org
Advances in time-resolved three-dimensional Particle Tracking Velocimetry (4D-PTV)
techniques have consistently revealed more accurate Lagrangian particle motions. A novel …

Preferential alignment and heterogeneous distribution of active non-spherical swimmers near Lagrangian coherent structures

X Si, L Fang - Physics of Fluids, 2021 - pubs.aip.org
We report the interaction between active non-spherical swimmers and a long-standing flow
structure, Lagrangian coherent structures (LCSs), in a weakly turbulent two-dimensional …

Uncertainties in the finite-time Lyapunov exponent in an ocean ensemble prediction model

M Matuszak, J Röhrs, PE Isachsen, M Idžanović - Ocean Science, 2025 - os.copernicus.org
Lagrangian coherent structures (LCSs) are transient features in the ocean circulation that
describe particle transport, revealing information about transport barriers and accumulation …

[LIBRO][B] Barriers and transport in unsteady flows: a Melnikov approach

S Balasuriya - 2016 - SIAM
Over the past several years, there has been an explosion of interest in analyzing flow
barriers in fluids. This has been driven by a variety of reasons. One is a concern for our …

Characterizing the spatial distribution of mixing and transport in the northern middle atmosphere during winter

J Curbelo, CR Mechoso - Journal of Geophysical Research …, 2024 - Wiley Online Library
A three‐dimensional winter (DJF) climatology of Lagrangian diffusivity characterizing eddy
mixing and transport in the northern middle atmosphere is presented. To emphasize aspects …