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active-lcs-2d

Extraction of objective material barriers to the transport of momentum and vorticity in 2D flows.

active-lcs-3d

Active barriers to transport of momentum and vorticity

aperiodic-ssms

Aperiodic spectral submanifold computation

barriertool

Automated extraction of barriers to diffusive transport in two-dimensional velocity fields

closed-null-geodesics-2d

This code computes elliptic LCSs in 2D, and can be used to compute general null-geodesics with minor modifications.

datadrivenlinearization

Constructing linearizing transformations for reduced-order modeling of nonlinear dynamical systems

deformationvelocity

elliptic_lcs_2d

Elliptic_LCS_2D is a tool to detect Geodesic transport barriers automatically in 2D unsteady flows

lagrangian-averaged-vorticity-deviation-lavd

LAVD is a tool to detect Rotationally coherent Lagrangian vortices automatically in 2D/3D unsteady flows

lcstool

LCS Tool is a computational engine for analyzing fluid flows by extracting their most influential material surfaces, Lagrangian Coherent Structures.

material-barriers-to-the-diffusion-of-the-magnetic-field-in-mhd

Datasets and Codes for the paper "Material Barriers to the Diffusion of the Magnetic Field".

modelsensitivity

Numerical implementation for the calculation of bounds on prediction errors in dynamical systems subject to modeling uncertainties.

quasiobjectiveeddyvisualizationfromsparsedrifterdata

This repository contains the code generating the figures in the paper: Encinas-Bartos, A. P., Aksamit, N. O., & Haller, G. (2022). Quasi-objective eddy visualization from sparse drifter data. Chaos: An Interdisciplinary Journal of Nonlinear Science, 32(11), 113143.

ssmlearn

Data-driven reduced order modeling for nonlinear dynamical systems

ssmlearnpy

Data-driven reduced order modeling for nonlinear dynamical systems

ssmtool

SSMtool is an automated computational algorithm for computing two-dimensional spectral submanifolds (SSMs)

ssmtool-2.4

Computation of invariant manifolds in high-dimensional mechanics problems

steadystatetool

This program computes the steady-state response (SSR) of multi-degree-of-freedom nonlinear mechanical systems under multi-frequency forcing using integral equations approach.

tbarrier

Methods to extract advective, diffusive, stochastic and active transport barriers from 2D and 3D data.

tra_tse

Compute the single Lagrangian trajectory diagnostics: Trajectory Rotation Average (TRA) and Trajectory Stretching Exponent (TSE)

traps

This code computes Transient Attracting Profiles TRAPs, also called Attracting Objective Eulerian Coherent Structures(OECSs).