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 BYM3jXWi0v
aZk&`Jpz
程序如下 g2R@`./S
5 #]4YI;
clearclc T'#!~GpB
h=1000;N=100; P(SZ68
R=100;for i=2:101 8CC/ BOe
theata(i)=asin(sqrt((i-1)/N));end a{!r`>I\f
theata(1)=0;for i=1:101 gFPi7 o1
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) t0#[#I1+
end% r(1)=0; U{ ;l0 2S
a=zeros(101,1);c=zeros(101,1); Ao7 `G':
x=zeros(101,1);y=zeros(101,1); )B!d,HKt;
a(1)=550;x(1)=-50; W"Jn(:&
y(1)=0;
?W0(|9
=6=_/q2
for i=2:100 k=2*a(i-1); 1P]de'-`j
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))]; Z?^"\u-
x(i)=XY(1); y(i)=XY(2); [`Cq\mI-W
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; eV6o3u:9
i x(i) nPkZHIxuD
y(i)end 33~qgK1>
plot(x,y)