******************* This email originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list https://spam.ic.ac.uk/SpamConsole/Senders.aspx to disable email stamping for this address. ******************* Hi everyone, I am trying to implement a 3D advection example on a cube with composite elements (hex+tets+pyramids+quads+tri). I am using periodic boundary conditions. I am getting the following error: "Unable to determine face orientation". I referred to the relevant section of user guide (please see screenshot). I am unable to understand how should I change the rotation argument such that I can simulate a periodic flow. It would really help if I get some more details about this. Many thanks, V ,-~~-.___._. / | ' \ | |--------. Vidhi Zala ( ) 0 | | | School of Computing \_/-, ,----' | | | Scientific Computing and Imaging Institute ==== !_!-v---v--. University of Utah / \-'~; .--------. / __/~| ._-""|| | vidhi.zala@utah.edu =( _____|_|____||________| http://sci.utah.edu/people/vidhi.html I support Ruff Haven Crises Shelter for Homeless Pets <https://www.ruffhaven.org/donate>. Consider a donation today :)