在Matlab中画流函数

uperrua

Matlab算例：
1 e: t7 t4 T2 m# gclear all;
$ T; m  U0 e$ [- Y/ U# O% Xclc;
%%
5 W* Q' S: t5 ce = 2; g = 1;
3 z. ~! S  L; ^& n0 ]! H3 t* Q[x,y] = meshgrid(0:20,0:15);  % This makes regular grid
u = e*x-g*y;                  % Linear velocity field
8 O9 d; l: o4 V6 W; mv = g*x-e*y;
[phi,psi] = flowfun(u,v);  % Here comes the potential and streamfun.
5 S) x0 [3 t/ f%
6 q3 k* }/ [2 C; @. g* W6 `% ^contour(phi,20,'--r','Displayname','phi')   % Contours of potential
hold on
! y- f0 n$ @  Y3 v; w9 \  Xcontour(psi,20,'-g','Displayname','psi')    % Contours of streamfunction
/ m% W, A' S5 V) t5 v" d0 qquiver(x,y,u,v,'Displayname','velocity')         % Now superimpose the velocity field
% W# `, I+ |! v; X1 F: T- {# Flegend show;


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yin123

在Matlab中画流函数