# Streamlines when re=1000

**URL:** <https://community.freefem.org/t/streamlines-when-re-1000/3438>\
**Category:** General Discussion\
**Created:** [August 12, 2024, 12:03pm UTC](https://community.freefem.org/t/streamlines-when-re-1000/3438 "2024-08-12T12:03:00Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![Alice](https://avatars.discourse-cdn.com/v4/letter/a/779978/32.png) [@Alice](https://community.freefem.org/u/Alice)\
**Post date:** [August 12, 2024, 12:03pm UTC](https://community.freefem.org/t/streamlines-when-re-1000/3438/1 "2024-08-12T12:03:00Z")

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Hi All,  
I am trying to plot streamlines for re=1000. I need to show the lines near corners but when I try to show my image looks too intense on the center like this:

 ![re1000bn.1](https://canada1.discourse-cdn.com/flex030/uploads/freefem/original/2X/9/99faf11812ab1547f0c2ea54c5b5a1f4eae6e2d5.jpeg)  
but my aim is to show it like this  
 ![image](https://canada1.discourse-cdn.com/flex030/uploads/freefem/original/2X/2/2b53bc84f8764ca842aabf01dcc65745a782f19f.jpeg).  
How can I do it?

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**Author:** ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)\
**Post date:** [August 12, 2024, 3:06pm UTC](https://community.freefem.org/t/streamlines-when-re-1000/3438/2 "2024-08-12T15:06:58Z")

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Use ParaView, it will be much cleaner.

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**Author:** ![Alice](https://avatars.discourse-cdn.com/v4/letter/a/779978/32.png) [@Alice](https://community.freefem.org/u/Alice)\
**Post date:** [August 13, 2024, 9:47am UTC](https://community.freefem.org/t/streamlines-when-re-1000/3438/3 "2024-08-13T09:47:39Z")

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Thank you for your reply.How can I pass the streamline data on Freefem to paraview?

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**Author:** ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)\
**Post date:** [August 13, 2024, 1:30pm UTC](https://community.freefem.org/t/streamlines-when-re-1000/3438/4 "2024-08-13T13:30:58Z")

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You want to pass the velocities, and then let ParaView draw the streamlines.

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**Author:** ![Alice](https://avatars.discourse-cdn.com/v4/letter/a/779978/32.png) [@Alice](https://community.freefem.org/u/Alice)\
**Post date:** [August 14, 2024, 12:50pm UTC](https://community.freefem.org/t/streamlines-when-re-1000/3438/6 "2024-08-14T12:50:39Z")

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Well I passed the data to paraview it looks like this although I used streamlines filter. Do you have any idea how I can manage to plot streamlines?

 ![image](https://canada1.discourse-cdn.com/flex030/uploads/freefem/original/2X/7/7ef0a25c5b13e5cd5845d89dcbb4efe7f2c24bdd.png)

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**Author:** ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)\
**Post date:** [August 14, 2024, 1:18pm UTC](https://community.freefem.org/t/streamlines-when-re-1000/3438/7 "2024-08-14T13:18:10Z")

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There are many available ParaView tutorials on YouTube and Google.

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**Author:** ![Alice](https://avatars.discourse-cdn.com/v4/letter/a/779978/32.png) [@Alice](https://community.freefem.org/u/Alice)\
**Post date:** [August 15, 2024, 11:21am UTC](https://community.freefem.org/t/streamlines-when-re-1000/3438/8 "2024-08-15T11:21:15Z")

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I solved at the end . Thank you so much.