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Airfoils (aerofoils)

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Airfoils is a small Python library for object-oriented airfoil modelling. The library provides tools to easily instantiate airfoil objects and to query geometric information. An airfoil object is defined by upper and a lower surface coordinates.


Airfoil nomenclature. Image in the public domain, via Wikimedia Commons.


  • Airfoil generation with a NACA-4 series definition

  • Import from files

  • Interpolation or computation of airfoil geometry parameters

    • Upper and lower surface coordinates

    • Camber line coordinates

    • Chord line coordinates (TODO)

    • Thickness distribution (TODO)

    • Maximum thickness (TODO)

  • Linear interpolation between two different airfoils (MorphAirfoil)

  • Plotting of airfoils


>>> from airfoils import Airfoil
>>> foil = Airfoil.NACA4('4812')
>>> foil.plot()
>>> foil.y_upper(x=0.5)
>>> foil.y_lower(x=[0.2, 0.6, 0.85])
array([0.00217557, 0.02562315, 0.01451318])
>>> foil.camber_line(x=0.5)


pip install airfoils



License: Apache-2.0

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