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2D lid driven cavity flow streamline plot

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Old   November 19, 2017, 14:29
Question 2D lid driven cavity flow streamline plot
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jungigo
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Hello, everyone I am a student who is trying to learn cfd on his own. I am trying to simulate lid riven cavity problem using RK3 and implicit method in fortran. and i got a result from my code and ploted streamline using tecplot but the streamline is little bit different from a streamline that already exists.
I've attached a picture of my streamline
i want to get a streamline showed in cfd1.png(2nd picture). but my streamline(1st picture) is relatevely messy.
what i have to do? plz help me


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File Type: png cfd.png (117.9 KB, 14 views)
File Type: png cfd1.png (37.6 KB, 12 views)
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Old   November 19, 2017, 14:35
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Filippo Maria Denaro
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Solve the Poisson problem

Lap psi = - vorticity
psi =0 on the walls

The solution can be used to get the streamlines
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