Streamlines over an airfoil

Question

Garrett 2021-5-28

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/841800-streamlines-over-an-airfoil

回答： Sulaymon Eshkabilov 2021-5-28

I need help to figure out how to plot streamlines over an airfoil (only the top half, figure attached). I think i have to use the contour function or maybe the streamslice function but not quite sure. The streamlines should be going from left to right, and over the hump of the airfoil at the bottom. The freestream speed (Vinf) is 1 m/s.

Vinf = 1;
c = 1;
L = 11*c;
H = 4*c;
N = 220;
deltax = L/N;
M = 40;
deltay = H/M;
yi=linspace(0,L,M);
xi=linspace(0,H,N);
z=zeros(M,N);
t = 0.12;
p0= 0.2969;
p1=-0.1260;
p2=-0.3516;
p3= 0.2843;
p4=-0.1015;
X0 = 0:0.001:1;
Y0 = (t/0.2).*(p0*sqrt(X0)+p1*(X0)+p2*((X0).^2)+p3*((X0).^3)+p4*((X0).^4));
 
figure(1)
plot (X0+5,Y0,'r','LineWidth',1.5)
xlim([0 L])
ylim([0 H])