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 1iJa j
n/6qc3\5i
程序如下 r$cq2pkX
+V `*
clearclc QFNw2:)
h=1000;N=100; fP KFU
R=100;for i=2:101 s# 9*`K
theata(i)=asin(sqrt((i-1)/N));end "g%=FH3e
theata(1)=0;for i=1:101 k0v&U@+-J
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) +B&,$ceyaJ
end% r(1)=0; 6bwzNY 7
a=zeros(101,1);c=zeros(101,1); 5hvg]w95;
x=zeros(101,1);y=zeros(101,1); 1=Z, #r
a(1)=550;x(1)=-50; t)l
y(1)=0; k^#+Wma7
~QngCg-5q
for i=2:100 k=2*a(i-1); ):-Ub4A\
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))]; )gHfbUYS
x(i)=XY(1); y(i)=XY(2); i}gsxq%
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; /Y`u4G()
i x(i) 63fgl+
y(i)end 7t3ps
plot(x,y)