{"id":438110,"date":"2025-07-29T21:08:49","date_gmt":"2025-07-29T21:08:49","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/convergence-error-in-eulerian-eulerian-multiphase-simulation-2\/"},"modified":"2025-07-29T21:51:18","modified_gmt":"2025-07-29T21:51:18","slug":"convergence-error-in-eulerian-eulerian-multiphase-simulation-2","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/convergence-error-in-eulerian-eulerian-multiphase-simulation-2\/","title":{"rendered":"Convergence error in Eulerian-Eulerian multiphase simulation"},"content":{"rendered":"<p>&lt;p&gt;&lt;p&gt;Hi I am simulating solid-water in a pipe using E-E. I have defined the solid as a fluid material (from Materials&gt;Create) and then given the density as that of sand keeping the viscosity unchanged. After that i am using a COUPLED, Pseudo time step and a steady state solution to run the flow. But the continutiiy term is diverging right from the beginning. What could be the problem with this? Do i have to modify the under-relaxation or something like this? Any help is greatly appreciated..thanks&lt;\/p&gt;&lt;\/p&gt;&lt;p&gt;It is showing &#8216; Having convergence issues: Temporarily relaxing&#8217; and later on &#8216;Divergence detected in AMG solver : Pressure Coupled&#8217;, Floating point error.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-438110","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["438110"],"_bbp_subscription":["296506","199"],"_bbp_author_ip":["129.11.145.115"],"_bbp_last_reply_id":["440308"],"_bbp_last_active_id":["440308"],"_bbp_last_active_time":["2025-08-28 16:22:18"],"_bbp_reply_count":["112"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["296506","199"],"_btv_view_count":["494"],"_bbp_topic_status":["unanswered"],"_edit_last":["296506"],"_bbp_revision_log":["a:1:{i:438113;a:2:{s:6:\"author\";i:296506;s:6:\"reason\";s:0:\"\";}}"]},"test":"scaboleeds-ac-uk"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/438110","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\/438110\/revisions"}],"predecessor-version":[{"id":438113,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/438110\/revisions\/438113"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=438110"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}