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Matlab算例：
1 T; N' c, Y( x( Uclear all;
1 a# e7 c" O/ ^clc;* W0 `6 o3 D+ t& w
%%
' 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%. O3 j( r5 n8 ^
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" Q1 H6 J& v( S7 H8 n- n
quiver(x,y,u,v,'Displayname','velocity') % Now superimpose the velocity field; m" m5 y# l/ @. q" F: r9 H
legend show;
1 @, X+ X5 v+ x; X _: x' ]- N+ }# u/ P2 F2 ^, E" e
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发表于 2020-4-29 10:45
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淘帖
支持！
反对！