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 ^ *
DKF
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程序如下 G$@X>)2N8
}_?7k0EZ@
clearclc q6_1`Ew
h=1000;N=100; t&r?O dc&m
R=100;for i=2:101 :cynZab
theata(i)=asin(sqrt((i-1)/N));end @XIwp2A{+
theata(1)=0;for i=1:101 r1?LKoJOn
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) pu>LC6m3a
end% r(1)=0; 0e7v ?UT
a=zeros(101,1);c=zeros(101,1); sg6cq_\
x=zeros(101,1);y=zeros(101,1); .FMF0r>l
a(1)=550;x(1)=-50; HPCA,*YR`
y(1)=0; 5~[Fh2+
W}=2?vHV=
for i=2:100 k=2*a(i-1); Sr+1.77}
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))]; 6kDU}]c:H]
x(i)=XY(1); y(i)=XY(2); ,*lK4?v
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; 3K0J6/mc
i x(i) iTK1I0
y(i)end [FCNW0NV
plot(x,y)