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 phK/
TV:9bn?r)
程序如下 4W])}C %
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6[Y
clearclc SKtr tm
h=1000;N=100; #ABCDi={zA
R=100;for i=2:101 5\v3;;A[
theata(i)=asin(sqrt((i-1)/N));end s.#`&Sd>
theata(1)=0;for i=1:101 j+!v}*I![
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) Zc yc*{DS
end% r(1)=0; D@KlOU{<
a=zeros(101,1);c=zeros(101,1); \G BuWY3B
x=zeros(101,1);y=zeros(101,1); ==B6qX8T
a(1)=550;x(1)=-50; 5s XXM
y(1)=0; 7nSxi+6e
No$3"4wk
for i=2:100 k=2*a(i-1); CAlCDfKW}
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))]; UBs4K*h|
x(i)=XY(1); y(i)=XY(2); $:6!H:ty
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; Y@v>FlqI{
i x(i) =%7-ZH9
y(i)end +mPx8P&%
plot(x,y)