NACA 5 digit Airfoil Generator

Generates the NACA 5 digit airfoil coordinates

Description

"naca5gen.m" Generates the NACA 5 digit airfoil coordinates with desired no. of panels (line elements) on it.
 
FEATURES:
 *Accurate coordinate generation with the required precision
 *Option to generate closed or open Trailing Edge
 *Additional separate outputs for camber line, upper surface and lower surface
 *A tst (test) file included
 
INPUTS:
[1] NACA 5 digit designation (eg. '23012')
[2] No of panels (line elements) PER SIDE (upper/lower)
[3] Type of chord station spacing (Half cosine spacing / Uniform spacing)
 
OUTPUTS:
[1] One can plot the generated airfoil, camber line and the leading edge circle by setting an option input wantPlot=1
[2] A data file can be generated by setting the option input wantFile=1
 
EXTENSION:
Being a function, the airfoil generator can be called several times from a loop to generate any number of airfoil data files.

• Acknowledgements: This submission has inspired the following:; XFOIL - MATLAB interface
• MATLAB release: MATLAB 7.4 (R2007a)

[ZerO]

very good mr Divahar ,for more airfoils check nasa technical memorandum report number 4741 dec.1996,it gives exact coordinates ,good luck.

[Austin Bond]

This program works well for the example given but when I plot a NACA 65016 their is an obvious discontinuity at the point of max camber. I believe the equations used are correct, but I'm not exactly sure how the k1 constant is obtained. Either way I believe the z-values at the point of max camber are wrong.

[ZerO]

or , get the proper multipliers for any prescribed lift coef.

[ZerO]

these equations valid for design lift coefficient of 0.3
which means the first digit is 2

[ZerO]

the same problem appears here too , http://www.mathworks.com/matlabcentral/fileexchange/28599-2d-potential-flow-solver-hess-smith-panel-method , you have to calculate the multipliers in order to change the ordinate and position of maximum camber .

[Dirk]

FYI python port here: https://github.com/dgorissen/naca