How to plot streamlines ?
6 ビュー (過去 30 日間)
古いコメントを表示
Lets say I have channel of length x = 200 and height y = 200. I have my velocity (u and v) distributed throughout the channel of size 200X200 for u and v each. How can I plot streamlines for this ? I have gone through the matlab documentation and am not clear about 'startx' and 'starty'. How should I define this ?
0 件のコメント
採用された回答
Chad Greene
2017 年 7 月 28 日
One way is to define a bunch of random seed locations within the domain like this:
N = 75; % number of seed locations
xstart = max(x)*rand(N,1);
ystart = max(y)*rand(N,1);
For example, try this:
x = 1:200;
y = 1:200;
[X,Y] = meshgrid(x,y);
vx = 30 + 30*cos((Y-100)*pi/100);
vy = 5*cos(X/10).*cos((Y-100)*pi/100);
figure
pcolor(X,Y,hypot(vx,vy))
shading interp
N = 75;
xstart = max(x)*rand(N,1);
ystart = max(y)*rand(N,1);
h=streamline(X,Y,vx,vy,xstart,ystart);
set(h,'color','red')
3 件のコメント
RAJA RAMA KRISHNAA B.U
2018 年 12 月 6 日
編集済み: RAJA RAMA KRISHNAA B.U
2018 年 12 月 6 日
I have a situation like, I have U and V values of velocity for 1023 frames. Now I need to load it and find a proper streamline plot for all frames at any desirable point.
Eseosa Ekanem
2021 年 5 月 25 日
Hi Raja, did you find a solution to your problem? I have similar challenge but I want to plot the streamlines for just one frame.
その他の回答 (0 件)
参考
カテゴリ
Help Center および File Exchange で Vector Fields についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!