Periodic Boundary Condition

mostafu · April 6, 2022, 09:05

I have made a 3D mesh and I am trying to make a periodic boundary condition. Is it necessary to have identical faces for this to work?

flotus1 · April 6, 2022, 09:23

Periodic boundary conditions don't seem like a good fit for the geometry shown in your images.
A bit hard to tell with the limited amount of information, but It looks like you could make it work by cutting the model in different positions. I.e. only use the portion between 0.0025...0.0075m. That should leave you with identical boundary faces, which is a prerequisite for periodic boundary conditions.

April 6, 2022, 09:05	Periodic Boundary Condition	#1
mostafu New Member Elmahdy Join Date: Apr 2022 Posts: 6 Rep Power: 4	I have made a 3D mesh and I am trying to make a periodic boundary condition. Is it necessary to have identical faces for this to work? Last edited by mostafu; April 6, 2022 at 09:47. Reason: Clearer description

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April 6, 2022, 09:23		#2
flotus1 Super Moderator Alex Join Date: Jun 2012 Location: Germany Posts: 3,427 Rep Power: 49	Periodic boundary conditions don't seem like a good fit for the geometry shown in your images. A bit hard to tell with the limited amount of information, but It looks like you could make it work by cutting the model in different positions. I.e. only use the portion between 0.0025...0.0075m. That should leave you with identical boundary faces, which is a prerequisite for periodic boundary conditions.