{"id":434117,"date":"2025-06-14T09:24:43","date_gmt":"2025-06-14T09:24:43","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cfd-fluent-solution-not-initializing\/"},"modified":"2025-10-18T11:41:29","modified_gmt":"2025-10-18T11:41:29","slug":"cfd-fluent-solution-not-initializing","status":"answered","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cfd-fluent-solution-not-initializing\/","title":{"rendered":"CFD Fluent Solution not initializing"},"content":{"rendered":"<p>&lt;p&gt;Good day,&nbsp;&lt;\/p&gt;&lt;p&gt;I want to simulate multiphase flows that is gravity-fed at the inlet and lifted from the sump by a submersible pump unsing Fluent.&nbsp;&nbsp;&lt;\/p&gt;&lt;p&gt;However, my solution is refusing to initialise and it gives the following error:&lt;\/p&gt;&lt;p&gt;Unassigned interface zones found. Flow is not initialized.&lt;\/p&gt;&lt;p&gt;WARNING: Unassigned interface zone detected for interface discharge-pipe-wall-interface&lt;\/p&gt;&lt;p&gt;WARNING: Unassigned interface zone detected for interface discharge-pipe-wall-interface.1&lt;\/p&gt;&lt;p&gt;WARNING: Unassigned interface zone detected for interface inlet-pipe-wall-interface&lt;\/p&gt;&lt;p&gt;This is a SOS, please help. <img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/06\/14-06-2025-1749892955-Wet Sump PS 2025 - Fluent Solution Error.png\" alt=\"Fluent Initialization Error \" \/>&lt;\/p&gt;&lt;p&gt;kind regards,&lt;\/p&gt;&lt;p&gt;Lumko&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-434117","topic","type-topic","status-answered","hentry","topic-tag-fluent-ansys-1","topic-tag-ansys-cfd-1","topic-tag-solver-initialization-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["434117"],"_bbp_subscription":["114386","436994","588621"],"_bbp_author_ip":["165.73.242.8"],"_bbp_last_reply_id":["448306"],"_bbp_last_active_id":["448306"],"_bbp_last_active_time":["2025-12-09 06:10:35"],"_bbp_reply_count":["2"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["114386","436994"],"_btv_view_count":["381"],"_bbp_topic_status":["answered"]},"test":"87ec6460e77ee518a3a0f5c950d7fd1526e31e35"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/434117","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":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/434117\/revisions"}],"predecessor-version":[{"id":444166,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/434117\/revisions\/444166"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=434117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}