KTH-Nek5000 / UQit

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UQit

A Python Package for Uncertainty Quantification (UQ) in Computational Fluid Dynamics (CFD)

SimEx/FLOW, Engineering Mechanics, KTH Royal Institute of Technology, Stockholm, Sweden

Features:

  • Sampling:

    • Various stochastic and spectral types of samples
  • Uncertainty propagation or UQ forward problem:

    • generalized Polynomial Chaos Expansion (gPCE)
    • Probabilistic PCE (PPCE)
  • Global sensitivity analysis (GSA):

    • Sobol sensitivity indices
  • Surrogates:

    • Lagrange interpolation
    • gPCE
    • Gaussian process regression (GPR)

Installation:

pip install UQit

Documentation:

The html documentation is on this GitHub page

How to run a test:

The tests associated to different UQ techniques are provided in ./tests/. Most of the tests have also been used in the notebooks and documentation. For instance, to run a test from pce_tests.py in ./tests/, do the following:

python3 -c 'import pce_tests as X;X.pce_1d_test()'

Required libraries:

Bugs/Questions

To cite UQit:

Publications using UQit:

Release Notes

Release v 1.0.2, 27.10.2020

Source code, documentation, tests and notebooks are provided for the above-listed features.

About

License:Mozilla Public License 2.0


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