Lagrangian coherent structures

G Haller - Annual review of fluid mechanics, 2015 - annualreviews.org
Typical fluid particle trajectories are sensitive to changes in their initial conditions. This
makes the assessment of flow models and observations from individual tracer samples …

The state of the art in topology‐based visualization of unsteady flow

A Pobitzer, R Peikert, R Fuchs… - Computer Graphics …, 2011 - Wiley Online Library
Vector fields are a common concept for the representation of many different kinds of flow
phenomena in science and engineering. Methods based on vector field topology are known …

The onset of dynamic stall revisited

K Mulleners, M Raffel - Experiments in fluids, 2012 - Springer
Dynamic stall on a helicopter rotor blade comprises a series of complex aerodynamic
phenomena in response to the unsteady change of the blade's angle of attack. It is …

Geodesic theory of transport barriers in two-dimensional flows

G Haller, FJ Beron-Vera - Physica D: Nonlinear Phenomena, 2012 - Elsevier
We introduce a new approach to locating key material transport barriers in two-dimensional,
non-autonomous dynamical systems, such as unsteady planar fluid flows. Seeking transport …

A survey of topology‐based methods in visualization

C Heine, H Leitte, M Hlawitschka… - Computer Graphics …, 2016 - Wiley Online Library
This paper presents the state of the art in the area of topology‐based visualization. It
describes the process and results of an extensive annotation for generating a definition and …

[HTML][HTML] Objective detection of oceanic eddies and the Agulhas leakage

FJ Beron-Vera, Y Wang, MJ Olascoaga… - Journal of Physical …, 2013 - journals.ametsoc.org
Objective Detection of Oceanic Eddies and the Agulhas Leakage in: Journal of Physical
Oceanography Volume 43 Issue 7 (2013) Jump to Content Jump to Main Navigation Logo Logo …

[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 …

Fast computation of finite-time Lyapunov exponent fields for unsteady flows

SL Brunton, CW Rowley - Chaos: An Interdisciplinary Journal of …, 2010 - pubs.aip.org
This paper presents new efficient methods for computing finite-time Lyapunov exponent
(FTLE) fields in unsteady flows. The methods approximate the particle flow map, eliminating …

The computation of finite-time Lyapunov exponents on unstructured meshes and for non-Euclidean manifolds

F Lekien, SD Ross - Chaos: An Interdisciplinary Journal of Nonlinear …, 2010 - pubs.aip.org
We generalize the concepts of finite-time Lyapunov exponent (FTLE) and Lagrangian
coherent structures to arbitrary Riemannian manifolds. The methods are illustrated for …

A fluid flow data set for machine learning and its application to neural flow map interpolation

J Jakob, M Gross, T Günther - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
In recent years, deep learning has opened countless research opportunities across many
different disciplines. At present, visualization is mainly applied to explore and explain neural …