求前辈指点迷津,感觉椭流线表达式有问题,又不知道哪里不对 kzK4i!}
%/K'VE6pb
程序如下 !bPsJbIo>
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clearclc _`H2CXGg
h=1000;N=100; !'
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R=100;for i=2:101 4F-r }Fj3
theata(i)=asin(sqrt((i-1)/N));end 0c$0<2D%
theata(1)=0;for i=1:101 ~"Kf+eFi
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) <8JV`dTywC
end% r(1)=0; _0v+g1x
a=zeros(101,1);c=zeros(101,1); ZSBa+3;z
x=zeros(101,1);y=zeros(101,1);
sp/l-a
a(1)=550;x(1)=-50; z)Yk&;XC
y(1)=0; Zgw;AY.R>
BotGPk><c
for i=2:100 k=2*a(i-1); *b$8O
F=[h,r(i-1)/2-r(i)/2]; XY=((k^2-norm(F)^2)/(2*k-2*norm(F)*cos(pi-theata(i))))*[cos(pi-theata(i)),sin(theata(i))];
/z0X
x(i)=XY(1); y(i)=XY(2); =)2sehU/
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; _D{V(c<WD
i x(i) J0 [^hH
y(i)end i>]1E^yF
plot(x,y)