TELEMAC-MASCARET Forum: Animation of projected flow paths in BlueKenue (1/1)

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TOPIC: Animation of projected flow paths in BlueKenue

Animation of projected flow paths in BlueKenue 11 years 1 week ago #10728

GiffordMiears_OSU OFFLINE Junior Boarder Posts: 36 Thank you received: 13	Hello All, From post #3040, I've learned how to create a streamline from a velocity field (thank you!). Now I wonder, is it possible animate the streamlines, from a specified location, through the duration of a simulation? (e.g., updating the projected flow path at each time-step?) Thank you in advance, -Chris
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Animation of projected flow paths in BlueKenue 11 years 1 week ago #10739

Serrer OFFLINE Moderator Posts: 719 Thank you received: 304	Hi Chris, Animating streamlines hasn't been implemented. The closest you could get would be to run a PSed simulation with dispersion turned off and neutrally buoyant particles. Sorry... Martin
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Animation of projected flow paths in BlueKenue 9 years 2 weeks ago #18569

mathieu5roy
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Posts: 60
Thank you received: 7

Hi Martin,

It is indeed a very good tip to animate a streamline. However, when the ambient velocity gets too high I noticed that the particle state becomes "lost" and the "streamline" does not propagate anymore. Is there a workaround for this? I tried lowering the Ksed factor to some degree and it seems to work for velocities ~ 1-1.2 m/s. However, for larger velocities (~1.5 m/s) it still does not work.

Thanks

Mathieu

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Animation of projected flow paths in BlueKenue 9 years 1 week ago #18588

Serrer OFFLINE Moderator Posts: 719 Thank you received: 304	Hi Mathieu, PSed uses an explicit lagrangian scheme. Try decreasing the PSed timestep. To get reasonable particle advection, you should have a minimum element residence time of about 3 steps. So look at the maximum current speed and corresponding minimum representative element length and do the math. Cheers... Martin
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