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DualSPHysics / DesignSPHysics

Module for FreeCAD intended to use with DualSPHysics fluid simulator.
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large vorticity close to the walls #86

Closed AtefeFz closed 3 years ago

AtefeFz commented 3 years ago

Hello,

I am modeling a mixing flow using Dualsphysics and the early results I have, show a very large vorticity field along the wall. Considering that the velocity of the walls is zero and the flow has a velocity of around 0.5 m/s this vorticity is expected, I guess. Am I right? As the experiment is a large flume without the effect of a wall, I do not want the wall vorticity affect my results in the mixing area. apart from widening the setup geometry which results in computational cost, is there any way that I can avoid large vorticity along the wall?

P.S: I have tried posting my question on the forum but there was no option for me to submit any. I already signed up there. Could you please let me know how can I post my question on the forum? https://forums.dual.sphysics.org/categories/dualsphysics-v5-0

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zlotny commented 3 years ago

This issue is already present in https://github.com/DualSPHysics/DualSPHysics/issues/78 which a better place to ask.

About the forum issue, assuming you signed up and confirmed your email, just navigate to the appropriate category (at the right of the page) and press "New Discussion". If you can't see that maybe the email isn't confirmed. I confirmed the email of users with your name (AtefeFz) so you should be good to go.