{"id":290392,"date":"2023-06-26T15:19:45","date_gmt":"2023-06-26T15:19:45","guid":{"rendered":"\/forum\/forums\/topic\/different-boundary-condition-gives-weird-result\/"},"modified":"2023-06-26T15:19:45","modified_gmt":"2023-06-26T15:19:45","slug":"different-boundary-condition-gives-weird-result","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/different-boundary-condition-gives-weird-result\/","title":{"rendered":"Different boundary condition gives weird result"},"content":{"rendered":"<p>hi, I&#8217;m modeling a duct and a tunnel where the duct is inside the tunnel (3 of them). the duct have fan to exhaust to suck all the existing air out. My problem is when i use mass flow outlet and mass flow inlet as a boundary condition, i got a floating point exception warning, but when i use velocity inlet and pressure outlet it give a good result. My problem is pressure outlet is not working at my case because the existing of the fan make the pressure is different and i have control the pressure, what should I do?&nbsp; Theres any way i can control the flow just by pressure ?<\/p>\n","protected":false},"template":"","class_list":["post-290392","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["287763","199"],"_bbp_author_ip":["96.7.218.215"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["312"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["290392"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","287763"],"_bbp_voice_count":["2"],"_bbp_reply_count":["21"],"_bbp_last_reply_id":["291292"],"_bbp_last_active_id":["291292"],"_bbp_last_active_time":["2023-07-03 13:43:42"]},"test":"limowaagung11students-itb-ac-id"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/290392","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\/290392\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=290392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}