{"id":250704,"date":"2023-02-21T08:36:04","date_gmt":"2023-02-21T08:36:04","guid":{"rendered":"\/forum\/forums\/reply\/250704\/"},"modified":"2023-02-21T08:36:04","modified_gmt":"2023-02-21T08:36:04","slug":"250704","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/250704\/","title":{"rendered":"Reply To: How to do steady state thermal simulation with only one boundary condition?"},"content":{"rendered":"<p>&lt;p&gt;Hi Rahul,&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Thank you for your suggestion!&lt;\/p&gt;&lt;p&gt;I initially put surface-to-surface radiation inside the assembly like this&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/02\/21-02-2023-1676967451-surface to surface.JPG\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;If I also put surface-to-surface radiation on the inner side, does it mean the room does not have a fluid movement?&nbsp;&lt;\/p&gt;&lt;p&gt;I tried changing the inner surface boundary into surface-to-surface radiation perfect enclosure instead of convection but it got an error in the boundary condition.&lt;\/p&gt;&lt;p&gt;But if I also include convection at the same surface, the simulation runs&lt;\/p&gt;&lt;p&gt;I was wondering why&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/02\/21-02-2023-1676968502-surface to surface2.JPG\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;Thanks&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Regards,&lt;\/p&gt;&lt;p&gt;Ricardo&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-250704","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/250704","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\/250704\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=250704"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}