{"id":394309,"date":"2024-11-19T15:21:37","date_gmt":"2024-11-19T15:21:37","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/394309\/"},"modified":"2024-11-19T15:21:37","modified_gmt":"2024-11-19T15:21:37","slug":"394309","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/394309\/","title":{"rendered":"Reply To: Non-Intersected faces found for matching interface periodic-walls"},"content":{"rendered":"<p>&lt;p&gt;Hey ANSYS team,&lt;\/p&gt;&lt;p&gt;I have a follow up question related to this problem set up. I ran my periodic BC case and compared the results to a 2D Axisymmetric and fully revolved case. The inlet\/outlet\/wall boundary conditions are the same for all 3 cases. My 2D Axisymmetric and fully revolved case approximately match in terms of flow field comparisons, but the periodic BC does not.&nbsp;&lt;\/p&gt;&lt;p&gt;I varied&nbsp; equation of state, checked the peridodic conditions for my periodic boundary condition, but the periodic BC results did not change. My shadow\/periodic faces match to be conformal&nbsp;&lt;\/p&gt;&lt;p&gt;I build my conformal, periodic BC with these inputs: origin [0,0,0], axis [1,0,0], auto offset&lt;\/p&gt;&lt;p&gt;Sometimes the auto offset is computed as +\/-90 deg&lt;\/p&gt;&lt;p&gt;Is there something that I&#8217;m missing? I haven&#8217;t had this issue before so I wasn&#8217;t sure if its due to the internal structures inside my domain (see below). Thank you again so much for your patience!&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/19-11-2024-1732029688-mceclip0.png\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-394309","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/394309","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/394309\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=394309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}