How can the velocity lines appear around the two spheres?
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
A =[ -4.7107
0.0012
-0.0056
0.0132
-0.0253
0.0435
-0.0689
0.1031
-0.1473
0.2040
-0.2737
0.3607
-0.4647
0.5927
-0.7425
0.9265
-1.1387
1.4014
-1.7014
2.0810
-2.5114
3.0805
-3.7224
4.6475
-5.6872
7.5039
-9.5388
16.4146
-25.4535
14.3236];
B=[ -3.3794
0.0005
-0.0009
0.0006
-0.0003
0.0001
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000];
C=[ 6.8417
-0.0007
0.0007
-0.0003
0.0001
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000];
AA=[ -4.7100
-0.0012
0.0058
-0.0132
0.0253
-0.0435
0.0689
-0.1032
0.1473
-0.2040
0.2737
-0.3608
0.4648
-0.5928
0.7426
-0.9266
1.1388
-1.4016
1.7016
-2.0813
2.5118
-3.0810
3.7230
-4.6482
5.6881
-7.5050
9.5403
-16.4171
25.4574
-14.3258];
BB=[ -3.3789
-0.0005
0.0009
-0.0006
0.0003
-0.0001
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000];
CC=[ 6.8407
0.0007
-0.0008
0.0003
-0.0001
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000];
a = 1 ; %RADIUS
L=.13;
akm=1;gamma=0.3;arh=0.1;
alphaa=sqrt(((2+akm).*(akm./gamma)).^2+arh.^2);
betaa=(2.*akm.*arh.^2./gamma).^(0.25);
alpha1=sqrt((alphaa.^2+sqrt(alphaa.^4-4.*betaa.^4))./2);
alpha2=sqrt((alphaa.^2-sqrt(alphaa.^4-4.*betaa.^4))./2);
dd=5;
c =-a/L;
b =a/L;
m =a*50; % NUMBER OF INTERVALS
[x,y]=meshgrid([c+dd:(b-c)/m:b],[c:(b-c)/m:b]');
[I J]=find(sqrt(x.^2+y.^2)<(a-.1));
if ~isempty(I);
x(I,J) = 0; y(I,J) = 0;
end
r=sqrt(x.^2+y.^2);
t=atan2(y,x);
r2=sqrt(r.^2+dd.^2-2.*r.*dd.*cos(t));
zet=(r.^2-r2.^2-dd.^2)./(2.*r2.*dd);
warning on
psi1=0;
for i=2:3;
Ai=A(i-1);Bi=B(i-1);Ci=C(i-1);AAi=AA(i-1);BBi=BB(i-1);CCi=C(i-1);
psi1=-psi1-(Ai.*r.^(-i-1)+r.^(-3./2).*besselk(i-1./2,r.*alpha1).*Bi+r.^(-3./2).*besselk(i-1./2,r.*alpha2).*Ci).*legendreP(i-1,cos(t))-(AAi.*r2.^(-i-1)+r2.^(-3./2).*besselk(i-1./2,r2.*alpha1).*BBi+r2.^(1./2).*besselk(i-1./2,r2.*alpha2).*CCi).*legendreP(i-1,zet);
end
hold on
[DH1,h1]=contour(x,y,psi1,50,'-k');
%axis square;
title('$(a)$ $\ell=0.1,\;\alpha=1.0$','Interpreter','latex','FontSize',10,'FontName','Times New Roman','FontWeight','Normal')
%%%%%%%%%%%%%%%% $\frac{\textstyle a_1+a_2}{\textstyle h}=6.0,\;
hold on
t3 = linspace(0,2*pi,1000);
h2=0;
k2=0;
rr2=1;
x2 = rr2*cos(t3)+h2;
y2 = rr2*sin(t3)+k2;
set(plot(x2,y2,'-k'),'LineWidth',1.1);
fill(x2,y2,'w')
%axis square;
hold on
t2 = linspace(0,2*pi,1000);
h=dd;
k=0;
rr=2;
x1 = rr*cos(t2)+h;
y1 = rr*sin(t2)+k;
set(plot(x1,y1,'-k'),'LineWidth',1.1);
fill(x1,y1,'w')
%axis square;
axis off
0 Kommentare
Antworten (0)
Siehe auch
Kategorien
Mehr zu Surface and Mesh Plots finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!