AirfoilDefinitions.jl

AirfoilDefinitions.jl is a Julia package for generating two-dimensional, chord-normalized airfoil geometries using parametric airfoil definitions.

It supports the following parameterization methods:

• AirfoilFile
• CST
• HicksHenne
• NACA4
• NACA5
• NACA6
• PARSEC

Install

AirfoilDefinitions.jl is not yet a registered Julia package. So to install it,

1. Download Julia version 1.10 or later.
2. Launch Julia and type

julia> import Pkg
julia> Pkg.add("https://github.com/gabrielbdsantos/AirfoilDefinitions.jl")

Quick start

using AirfoilDefinitions

# Step 1. Select an airfoil generation method.
airfoil = NACA4("0012"; open_trailing_edge = true)

# Step 2. Generate the coordinates
coords = coordinates(airfoil)

Coordinate convention

All airfoils are defined in a two-dimensional Cartesian coordinate system with the following conventions:

• Chord length is normalized to unity.
• The leading edge is located at x = 0, and the trailing edge at x = 1.
• Airfoil surface coordinates are ordered clockwise, starting from the upper trailing edge (Selig ordering).

Coordinates arranged according to the Selig ordering. Source: https://doi.org/10.2514/1.J059317.

Contributing

Contributions are welcome, particularly new airfoil definition methods and improvements to existing implementations. Please open an issue to discuss substantial changes or new parameterization methods before submitting a pull request.

License

AirfoilDefinitions.jl is released under the terms of the MIT license. See the License file for further details.