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 J,q:
qt1#P
程序如下 vw(};)8
JTb<uC
clearclc (nc fR
h=1000;N=100; Q2NS> [
R=100;for i=2:101 =*(d+[_
theata(i)=asin(sqrt((i-1)/N));end w?5b: W,
theata(1)=0;for i=1:101 #h&?wE>
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) s/T5aJR
end% r(1)=0; Ti'O 2k
a=zeros(101,1);c=zeros(101,1); .oe,#1Qh{
x=zeros(101,1);y=zeros(101,1); C2b.([HE
a(1)=550;x(1)=-50; {<]abO
y(1)=0; B;-oa;m:E=
" 7aFVf
for i=2:100 k=2*a(i-1); }5]NUxQ_
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))]; ;N
j5N B7
x(i)=XY(1); y(i)=XY(2); W!Xgse3
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; $@U`zy"Y
i x(i) ?(|!VLu
y(i)end *r %
plot(x,y)