Learning Forum

[Shyam Prasad V Atri]

When I run dpm particles with axis BC the particles cross the axis BC and go to domain where geometry is not existent on fluent. How can this be fixed? 

[Nikhil N]

Hello,

 

This should not happen because for axis boundaries, the solver assumes 'reflect type' boundary condition by default. You may want to check this section of the user's guide: 20.4. Setting Boundary Conditions for the Discrete Phase (ansys.com)

If you are not able to access the link, please refer to this forum discussion: Using Help with links (ansys.com)

Check if correct DPM boundary conditions have been assigned to the wall boundaries. 

 

Thank you

Nikhil

[Shyam Prasad V Atri]

i agree it should not happen. In case such a thing occurs how would i fix it?

i have checked all my boundary condition it still occors. few particles just go out of the axis. Can you please tell me how to fix it.

[Nikhil N]

Are you running a 2D axis-symmetric case? 

[Nikhil N]

"particles cross the axis BC and go to domain where geometry is not existent on fluent."

Can you also share some screenshots?

[Shyam Prasad V Atri]

[Shyam Prasad V Atri]

You see the horizontal thing on the right is the axis why is the particle going out of the axis? what could possibly cause this