naca

naca, a C code which takes the parameters of certain NACA airfoils and returns the coordinates of a sequence of points that outline the wing shape. The data can be displayed with gnuplot.

Licensing:

The computer code and data files described and made available on this web page are distributed under the MIT license

Languages:

naca is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version and a Python version.

Related Data and Programs:

gnuplot_test, C codes which illustrate how a program can write data and command files so that gnuplot can create plots of the program results.

naca, a C code which can take the parameters of certain naca airfoils and return the coordinates of a sequence of points that outline the wing shape. The data can be displayed with gnuplot().

naca_test

Reference:

1. Eastman Jacobs, Kenneth Ward, Robert Pinkerton,
   "The characteristics of 78 related airfoil sections from tests in the variable-density wind tunnel",
   NACA Report 460, 1933.

Source Code:

• naca.c, the source code.
• naca.sh, compiles the source code.
• naca.h, the include file.

• naca_test.c, a sample calling program.
• naca_test.sh, runs all the examples.
• naca_test.txt, the output file.

• symmetric_data.txt, the data outlining the NACA symmetric 4-digit airfoil.
• symmetric_commands.txt, gnuplot commands to plot the data.
• symmetric.png, a PNG image of the data.
• cambered_data.txt, the data outlining the NACA cambered 4-digit airfoil.
• cambered_commands.txt, gnuplot commands to plot the data.
• cambered.png, a PNG image of the data.