在Matlab中画流函数

uperrua

Matlab算例：
1 T; N' c, Y( x( Uclear all;
1 a# e7 c" O/ ^clc;
%%
' N- E1 `5 @0 d+ L( Y7 ye = 2; g = 1;
+ z2 P% P0 X5 `  O[x,y] = meshgrid(0:20,0:15);  % This makes regular grid
; k! S% a- d  ~& K4 Wu = e*x-g*y;                  % Linear velocity field
' ]- ]! h" y8 a# J5 Zv = g*x-e*y;
: ]  h) z) w# D+ V% c+ w- F[phi,psi] = flowfun(u,v);  % Here comes the potential and streamfun.
& s6 T1 j& \- o- e# x. x%
contour(phi,20,'--r','Displayname','phi')   % Contours of potential
+ K2 q& U- `' a) B6 e) e& yhold on
1 `1 `2 h; _. s' R. _contour(psi,20,'-g','Displayname','psi')    % Contours of streamfunction
quiver(x,y,u,v,'Displayname','velocity')         % Now superimpose the velocity field
legend show;
1 @, X+ X5 v+ x; X  _: x' ]- N

yin123

在Matlab中画流函数