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 6jE.X
I8H3*DE
程序如下 'u,|*o
D:P(;
clearclc |k a _Zy
h=1000;N=100; *yq65yZi5
R=100;for i=2:101 RQ+, 7Ir
theata(i)=asin(sqrt((i-1)/N));end ">V&{a-C4
theata(1)=0;for i=1:101 Y&2FH/(M
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) .#EU@Hc
end% r(1)=0; w OL,L U
a=zeros(101,1);c=zeros(101,1); h*w9{[L
x=zeros(101,1);y=zeros(101,1); Y;'<u\^M"
a(1)=550;x(1)=-50; A;AQw
y(1)=0; CS^6$VL7e
[6GYYu\
for i=2:100 k=2*a(i-1); ly0R'4j \
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))]; 1M ?BSH{
x(i)=XY(1); y(i)=XY(2); r. 82RoG?G
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; MU<(O}
i x(i) *V>?m6y/
y(i)end _!xrBdaJ
plot(x,y)