{"id":363531,"date":"2024-04-22T14:02:30","date_gmt":"2024-04-22T14:02:30","guid":{"rendered":"\/forum\/forums\/reply\/363531\/"},"modified":"2024-04-22T14:02:30","modified_gmt":"2024-04-22T14:02:30","slug":"363531","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/363531\/","title":{"rendered":"Reply To: Convergence Error – Fluid Structure Interaction"},"content":{"rendered":"

<p>Hello <\/p><p>Ensure that your participant solution solved alone works well before coupling.<\/p><p>If the coupled run fails:<br>\u2010 Find out which solver failed first – look at all the output files to determine where the error started<br>\u2010 Check the mapping<br>\u2010 If MAPDL, were reasonable forces \/ thermal loads received?<br>\u2010 If Fluent, were reasonable displacements \/ thermal loads received?<br>\u2010 Were the individual field solvers converging?<br>\u2010 If a run fails in the first few time steps, re-run for a limited number of time steps and\/or with a limited <br>number of Coupling Iterations so that you can generate results files and examine the result<\/p><p>Also, refer to: Building a Coupled FSI Analysis from Decoupled Participant Problems (ansys.com)<\/a><\/p><p>Improving the Accuracy of Transient Analyses (ansys.com)<\/a><\/p><p>Improving Coupled Analysis Stability (ansys.com)<\/a><\/p><\/p>\n","protected":false},"template":"","class_list":["post-363531","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t