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 }6]0hWsN[
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程序如下 p|[B
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clearclc %,UPJn
h=1000;N=100; *%gF2@=r8F
R=100;for i=2:101 FN^FvQ
theata(i)=asin(sqrt((i-1)/N));end ,[!LCXp
theata(1)=0;for i=1:101 ,S&z<S_
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) KbW9s,:p
end% r(1)=0; )r tomp:X
a=zeros(101,1);c=zeros(101,1); 0-d>I@j
x=zeros(101,1);y=zeros(101,1); UE"GJt`I
a(1)=550;x(1)=-50; ae+*=,
y(1)=0; _$s> c!t,#
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for i=2:100 k=2*a(i-1); v)X\GmW7w
F=[h,r(i-1)/2-r(i)/2]; XY=((k^2-norm(F)^2)/(2*k-2*norm(F)*cos(pi-theata(i))))*[cos(pi-theata(i)),sin(theata(i))]; \6!W05[ Q
x(i)=XY(1); y(i)=XY(2); q3P+9/6
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; ]$b2a&r9
i x(i) ~nY]o"8D
y(i)end z rfUQO
plot(x,y)