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Wall bounded streamlines

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Old   January 29, 2014, 11:31
Default Wall bounded streamlines
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Julian Langowski
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Dear Foamers,
I have a question about streamlines. I know how to control them in paraview, but I wonder if it is possible to confine them to a certain wall/patch distance just using paraview? I already have described my problem here:

Wall bounded values and streamlines

Thanks for any help!

Best regards
Julian
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Old   February 2, 2014, 16:37
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Bruno Santos
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Greetings Julian,

I had to read the other thread, in order to understand what you meant: you want the streamlines only on the patch surface. I was initially thinking you were referring to restraining the streamlines for a certain distance from a patch.

In ParaView has got "Surface LIC" (or "SurfaceLIC"), a special plug-in that can represent streamlines on surfaces. You can find some information about this here on the CFD-Online forums if you search for it. The thread on this topic that I'm most familiar with is this one: Limiting streamlines using surfaceLIC plugin

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Bruno
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Old   February 2, 2014, 17:52
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Julian Langowski
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Dear Bruno,
first of all, thanks for your reply.

Quote:
Originally Posted by wyldckat View Post
I had to read the other thread, in order to understand what you meant: you want the streamlines only on the patch surface. I was initially thinking you were referring to restraining the streamlines for a certain distance from a patch.
I want to do, what is explained in the OF 2.2.0 patch notes:

http://www.openfoam.org/version2.2.0...processing.php

(=> see: new wallBoundedStreamLine - creates streamlines in VTK format to show near-wall flow, as shown for the motorbike tutorial case)

As explained in the other threat, this does not work in my case.

Quote:
Originally Posted by wyldckat View Post
In ParaView has got "Surface LIC" (or "SurfaceLIC"), a special plug-in that can represent streamlines on surfaces. You can find some information about this here on the CFD-Online forums if you search for it. The thread on this topic that I'm most familiar with is this one: Limiting streamlines using surfaceLIC plugin
That indeed is an interesting tool. Just tried it and fiddled around a bit.
I applied it to my object surface patch and loaded the according velocity.
Seems to work and give me these LIC streamlines. I just wonder, is it the same as the wallBoundedStreamlines? Anyway, I just want to show separated flow regions, so with wallGradU this should be possible to do.

Thanks again and best regards
Julian
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