{"id":169887,"date":"2022-05-29T05:20:10","date_gmt":"2022-05-29T05:20:10","guid":{"rendered":"\/forum\/forums\/topic\/how-do-i-resolve-this-floating-point-error-in-the-fluid-domain-of-my-fsi-simulation\/"},"modified":"2022-05-29T05:20:10","modified_gmt":"2022-05-29T05:20:10","slug":"how-do-i-resolve-this-floating-point-error-in-the-fluid-domain-of-my-fsi-simulation","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-do-i-resolve-this-floating-point-error-in-the-fluid-domain-of-my-fsi-simulation\/","title":{"rendered":"How do I resolve this floating point error in the fluid domain of my FSI simulation?"},"content":{"rendered":"<p>I&#8217;m doing an FSI simulation.<br \/>\n(This isn&#8217;t related to my last post. Its a similar simulation with a different geometry for the fluid domain)<br \/>\nI start getting  floating point errors in the fluid domain.<br \/>\n&#8220;Divergence detected in AMG solver: x-momentum<br \/>\nDivergence detected in AMG solver: y-momentum<br \/>\nDivergence detected in AMG solver: z-momentum<br \/>\nDivergence detected in AMG solver: pressure correction<br \/>\nError at Node 15: floating point exception<br \/>\nError at Node 16: floating point exception<br \/>\nError at Node 17: floating point exception&#8221;<br \/>\nIs this related to my boundary conditions?<br \/>\nI have 2 walls and 1 pressure outlet with a UDF imposing an exit pressure.<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/134\/VFKA5RKURU95.png\" width=\"934\" height=\"1117\" \/><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/041\/P0FKPUJCMZTK.png\" width=\"1791\" height=\"839\" \/><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/892\/DH4ZB1Y40OB8.png\" width=\"1100\" height=\"766\" \/><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/054\/LB2SFJKRJ0XW.png\" width=\"1100\" height=\"766\" \/><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/859\/UM9W8J5C73DU.png\" width=\"1414\" height=\"811\" \/><\/p>\n","protected":false},"template":"","class_list":["post-169887","topic","type-topic","status-closed","hentry","topic-tag-ansys","topic-tag-ansys-fluent","topic-tag-ansys-mechanical","topic-tag-ansys-workbench","topic-tag-fsi"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_btv_view_count":["571"],"_bbp_likes_count":["0"],"_bbp_subscription":["254310","25"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["169887"],"_bbp_forum_id":["27792"],"_bbp_engagement":["25","254310"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["218116"],"_bbp_last_active_id":["218116"],"_bbp_last_active_time":["2022-07-09 23:19:02"]},"test":"dxc200018utdallas-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/169887","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\/169887\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=169887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}