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 JBJ?|}5k4c
CALD7qMK
程序如下 $^^M&[b-
~Y*.cGA
clearclc 047PlS
h=1000;N=100; @}!?}QU
R=100;for i=2:101 uuD2O )v
theata(i)=asin(sqrt((i-1)/N));end &1^~G0Rh\
theata(1)=0;for i=1:101 `RE>gX
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) %@)q=*=y
end% r(1)=0; iM:-750n/
a=zeros(101,1);c=zeros(101,1); M.MQ?`_"b
x=zeros(101,1);y=zeros(101,1); 4]0:zS*O
a(1)=550;x(1)=-50; nXb_\9E
y(1)=0; w ~crj$UM
n[K%Xs)
for i=2:100 k=2*a(i-1); W|rAn2H
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))]; U"Bge\6x=
x(i)=XY(1); y(i)=XY(2); y&8`NS#_p?
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; V/"RCqY4
i x(i) eX"Ecl{
y(i)end V?x&\<;,
plot(x,y)