{"id":49918,"date":"2020-11-17T15:46:10","date_gmt":"2020-11-17T15:46:10","guid":{"rendered":"\/forum\/forums\/topic\/dpm-modelling-in-compressible-flow\/"},"modified":"2020-11-17T15:46:10","modified_gmt":"2020-11-17T15:46:10","slug":"dpm-modelling-in-compressible-flow","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/dpm-modelling-in-compressible-flow\/","title":{"rendered":"DPM modelling in compressible flow"},"content":{"rendered":"<p>Hi,nnI am working on spray cooling.I want to spray water in a compressible flow.The stagnation pressure is 4Mpa and static pressure is 0.696Mpa.I set operating pressure to zero and i enter 4Mpa and 0.696Mpa in pressure inlet boundary conditions.I enabled species transport.In materials for mixture template, i select ideal gas for density, mixing law for Cp and Sutherland Law for viscosity.I use pressure swirl atomizer.nnAt the beginning of injection i recieve this error:# Divergence detected in AMG for pressure coupled: protective actions enabled!nn# Divergence detected in AMG for pressure coupled, temporarily solve with BCGSTAB!nnError: Divergence detected in AMG solver: pressure couplednnWhat should I do?what is wrong?.nnRegardsnnMiladn<\/p>\n","protected":false},"template":"","class_list":["post-49918","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["22159"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":["?\u047f?"],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["501"],"_bbp_subscription":["255973"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["49918"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","22555","181850"],"_bbp_voice_count":["3"],"_bbp_reply_count":["18"],"_bbp_last_reply_id":["135236"],"_bbp_last_active_id":["135236"],"_bbp_last_active_time":["2020-12-07 09:16:14"]},"test":"milhm"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/49918","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\/49918\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=49918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}