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 OAR#* ~q
*siS4RX2
程序如下 :W-"UW,
I[@}+p0
clearclc vfcj,1
h=1000;N=100; K"#np!Y)
R=100;for i=2:101 G8Ns?
theata(i)=asin(sqrt((i-1)/N));end _l{GHz
theata(1)=0;for i=1:101 e>z3\4
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) d7N}-nsB
end% r(1)=0; FF)F%o+:w
a=zeros(101,1);c=zeros(101,1); oCXBek?\
x=zeros(101,1);y=zeros(101,1); 9ZeTS~i
a(1)=550;x(1)=-50; 7M=`Z{=9
y(1)=0; ]'EtLFv)
W;eHDQ|
for i=2:100 k=2*a(i-1); Jf YO|,
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))]; T&fqn!i
x(i)=XY(1); y(i)=XY(2); t'
o:aI
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; ZlUd^6|:3
i x(i) p4*VE5[?_+
y(i)end tTX2>8Gmr
plot(x,y)