May 31, 2023 at 9:00 am
Rob
Ansys Employee

To add, symmetry is essentially a mirror surface so everything will "bounce off" it. As Federico suggests I think a periodic is what you're after: read 

https://ansyshelp.ansys.com/account/Secured?returnurl=/Views/Secured/corp/v231/en/flu_ug/flu_ug_bcs_sec_bound_cond.html

https://ansyshelp.ansys.com/account/Secured?returnurl=/Views/Secured/corp/v231/en/flu_ug/flu_ug_sec_periodic_hxfer.html