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    • SSMLearn

      Public
      Data-driven reduced order modeling for nonlinear dynamical systems
      MATLAB
      GNU Affero General Public License v3.0
      274700Updated Nov 26, 2024Nov 26, 2024
    • Data-driven reduced order modeling for nonlinear dynamical systems
      Jupyter Notebook
      GNU General Public License v3.0
      51400Updated Sep 11, 2024Sep 11, 2024
    • This repository contains the code to compute ralpha and rTSE in both 2D and 3D flows following the paper: "Relative Fluid Stretching and Rotation for Sparse Trajectory Observations" by Nikolas Aksamit, Alex P. Encinas Bartos, George Haller and David Rival (2024).
      Jupyter Notebook
      1000Updated Aug 29, 2024Aug 29, 2024
    • Constructing linearizing transformations for reduced-order modeling of nonlinear dynamical systems
      Python
      GNU General Public License v3.0
      11000Updated Jul 23, 2024Jul 23, 2024
    • TBarrier

      Public
      Methods to extract advective, diffusive, stochastic and active transport barriers from 2D and 3D data.
      Jupyter Notebook
      GNU General Public License v3.0
      142100Updated Jun 18, 2024Jun 18, 2024
    • Datasets and Codes for the paper "Material Barriers to the Diffusion of the Magnetic Field".
      1000Updated May 18, 2024May 18, 2024
    • Aperiodic spectral submanifold computation
      MATLAB
      GNU General Public License v3.0
      0200Updated Apr 15, 2024Apr 15, 2024
    • Computation of invariant manifolds in high-dimensional mechanics problems
      MATLAB
      GNU General Public License v3.0
      92300Updated Aug 10, 2023Aug 10, 2023
    • Jupyter Notebook
      1100Updated Dec 13, 2022Dec 13, 2022
    • 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.
      Jupyter Notebook
      MIT License
      3000Updated Nov 29, 2022Nov 29, 2022
    • TRA_TSE

      Public
      Compute the single Lagrangian trajectory diagnostics: Trajectory Rotation Average (TRA) and Trajectory Stretching Exponent (TSE)
      MATLAB
      GNU General Public License v3.0
      4300Updated Jun 23, 2021Jun 23, 2021
    • Numerical implementation for the calculation of bounds on prediction errors in dynamical systems subject to modeling uncertainties.
      Jupyter Notebook
      GNU General Public License v3.0
      3100Updated Jul 16, 2020Jul 16, 2020
    • TRAPs

      Public
      This code computes Transient Attracting Profiles TRAPs, also called Attracting Objective Eulerian Coherent Structures(OECSs).
      BSD 2-Clause "Simplified" License
      3200Updated Jul 8, 2020Jul 8, 2020
    • Automated extraction of barriers to diffusive transport in two-dimensional velocity fields
      MATLAB
      10400Updated Jul 2, 2020Jul 2, 2020
    • Active barriers to transport of momentum and vorticity
      GNU General Public License v3.0
      5100Updated Jul 1, 2020Jul 1, 2020
    • Extraction of objective material barriers to the transport of momentum and vorticity in 2D flows.
      MATLAB
      2100Updated Jun 21, 2020Jun 21, 2020
    • This program computes the steady-state response (SSR) of multi-degree-of-freedom nonlinear mechanical systems under multi-frequency forcing using integral equations approach.
      MATLAB
      GNU General Public License v3.0
      4300Updated Oct 1, 2019Oct 1, 2019
    • SSMtool

      Public
      SSMtool is an automated computational algorithm for computing two-dimensional spectral submanifolds (SSMs)
      MATLAB
      6600Updated Mar 4, 2019Mar 4, 2019
    • This code computes elliptic LCSs in 2D, and can be used to compute general null-geodesics with minor modifications.
      MATLAB
      BSD 2-Clause "Simplified" License
      11300Updated Nov 10, 2016Nov 10, 2016
    • LAVD is a tool to detect Rotationally coherent Lagrangian vortices automatically in 2D/3D unsteady flows
      MATLAB
      23500Updated Feb 27, 2016Feb 27, 2016
    • Elliptic_LCS_2D is a tool to detect Geodesic transport barriers automatically in 2D unsteady flows
      MATLAB
      BSD 2-Clause "Simplified" License
      12400Updated Feb 27, 2016Feb 27, 2016
    • LCStool

      Public
      LCS Tool is a computational engine for analyzing fluid flows by extracting their most influential material surfaces, Lagrangian Coherent Structures.
      MATLAB
      142510Updated Jun 10, 2015Jun 10, 2015