{"id":408943,"date":"2025-02-08T23:48:46","date_gmt":"2025-02-08T23:48:46","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cell-zones-with-interior-boundary-condition\/"},"modified":"2025-02-08T23:48:46","modified_gmt":"2025-02-08T23:48:46","slug":"cell-zones-with-interior-boundary-condition","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cell-zones-with-interior-boundary-condition\/","title":{"rendered":"Cell Zones with interior boundary condition"},"content":{"rendered":"<p>&lt;p&gt;Hi everyone,&nbsp;&lt;\/p&gt;&lt;p&gt;I am working on a project that is interested in the pressure changes in a fuel injection rail as injectors open and close. I have four injectors in parallel with a wall on the left side of the figure and an inlet boundary condition on the right of the figure.&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;<a> <img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/02\/08-02-2025-1739058339-mceclip0.png\" \/><\/a>&lt;\/p&gt;&lt;p&gt;I am working on a project that has an inlet boundary condition, followed by a injector inlet boundary condition and an outlet boundary condition. The injector inlet boundary condition is a UDF that says that the boundary condition is a door that opens and closes at the frequency the injector operates at. I am trying to get the 2 different cell zones to allow mass to transport between each other between this injector condition but I cannot get it to work. I know its a mesh interface problem. The two meshes are the same size so thats not a problem with a non conformal mesh. I want to &#8220;couple&#8221; these two cell zones but how do i do that. I am also working with ansys fluent student if that makes a difference. I suspect there might be limited capability in it.&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-408943","topic","type-topic","status-publish","hentry","topic-tag-fluent-cfd-ansys-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["408943"],"_bbp_author_ip":["50.67.50.46"],"_bbp_last_reply_id":["409036"],"_bbp_last_active_id":["409036"],"_bbp_last_active_time":["2025-02-10 11:16:16"],"_bbp_reply_count":["2"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["464715","199"],"_btv_view_count":["173"],"_bbp_topic_status":["unanswered"],"_bbp_subscription":["199","464715"],"_edit_lock":["1739186513:464715"]},"test":"pahuynhsfu-ca"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/408943","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/408943\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=408943"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}