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Old   May 13, 2008, 10:00
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Does anyone know how to process XFOIL commands through MALTAB? I am able to open the program through the !shell command, but how does one enter the commands in MATLAB for execution in XFOIL.

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Old   January 18, 2011, 05:38
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Chris Day
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I know this is an old question, but in case anyone needs to do this...

You have to write a text file of inputs, which have on each line what you would enter into the command prompt. Then run that file with the shell command into XFoil.

I ran this first:
fid = fopen('XFoil_inputs.dat', 'wt');
fprintf(fid,['naca ' airfoil '\r']); % load this profile
fprintf(fid,'ppar\r'); % enter panelling parameters menu
fprintf(fid,['n 280\r']); % change the number of panels from 140 (default) to 280 (maximum)
fprintf(fid,'\r'); % carriage return
fprintf(fid,'\r'); % carriage return
fprintf(fid,'gdes\r'); % enter the geometry design menu
fprintf(fid,'flap\r'); % create a flap
... generate a file with these contents:
naca 23012
n 280

Then from Matlab execute !XFoil.exe<XFoil_inputs.dat, or whatever your filenames may be.
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