I want to draw streamline around airfoil.
2 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
I made 9412 naca airfoil.
Can I draw streamline with this?
clear;close;clc;
name = '9412';
P = str2double(name(1))/100
M = str2double(name(2))/10
XX = str2double(name(3:4))/100
nx = 200;
xc = linspace(0, 1, nx);
ip = xc < M
yc(ip) = P./M.^2.*(2*M.*xc(ip) - xc(ip).^2);
dycdxc(ip) = 2.*P./M.^2.*(M-xc(ip));
ip = xc > M
yc(ip) = P./(1-M).^2.*((1-2.*M)+2.*M.*xc(ip)-xc(ip).^2);
dycdxc(ip) = 2.*P./(1-M).^2.*(M-xc(ip));
theta = atan(dycdxc);
a0 = 0.2969;
a1 = -0.1260;
a2 = -0.3516;
a3 = 0.2843;
a4 = -0.1015;
tc = a0.*xc.^(1/2) + a1.*xc + a2.*xc.^2 + a3.*xc.^3 + a4.*xc.^4;
xcu = xc-tc.*sin(theta);
ycu = yc+tc.*cos(theta);
xcl = xc+tc.*sin(theta);
ycl = yc-tc.*cos(theta);
figure(1)
hold on
plot(xcu, ycu, 'r.-')
plot(xcl, ycl, 'b.-')
plot(xc,yc,'ko-')
for i=1:nx
plot([xcu(i) xcl(i)], [ycu(i) ycl(i)], 'k-')
end
hold off
axis equal
1 comentario
Star Strider
el 5 de Dic. de 2020
I’m not certain.
However while searching online to see if I could find a way to determine that, I found External Flow over an Airfoil By way of Streamlines And the PDE Toolbox, and File Exchange contributions Joukowski Airfoil Transformation and Matlab program for Joukowski Airfoil.
Respuestas (0)
Ver también
Categorías
Más información sobre Airfoil tools en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!