{"id":166628,"date":"2022-02-22T10:17:26","date_gmt":"2022-02-22T10:17:26","guid":{"rendered":"\/forum\/forums\/topic\/cfd-analysis-of-a-viscoelastic-material\/"},"modified":"2022-03-03T18:51:55","modified_gmt":"2022-03-03T18:51:55","slug":"cfd-analysis-of-a-viscoelastic-material","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cfd-analysis-of-a-viscoelastic-material\/","title":{"rendered":"CFD analysis of a viscoelastic material"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hi all<\/p>\n<p><\/p>\n<\/p>\n<p>I am into the stress analysis of a visocelastic fluid which having a vertical downwards inlet velocity, hits the moving flat surface and then deforms freely (free surface). I tried to model it using FEM (ALE, moving mesh, COMSOL) but the solution did not converge. One possible reason, could be the topological change due to free surface. but I am not quite sure. If that is the case then two phase fluid flow, considering one as visocelastic (OLDROYD B) and other as air could be a better choice considering the topological changes. COMSOL document says it can handle two phase flow of non Newtonian fluid but it can&#039;t handle it by phase field or level set method if one of the fluid is viscoelastic. <\/p>\n<p><\/p>\n<\/p>\n<p>I have not used ANSYS-Fluent in past. I get some information about Polyflow which seems attractive at the moment. Can any one knows if it can handle two phase viscoelastic modelling involving free surfaces? <\/p>\n<p><\/p>\n<\/p>\n<p>Thankyou.<\/p>\n","protected":false},"template":"","class_list":["post-166628","topic","type-topic","status-closed","hentry","topic-tag-ansys-fluent","topic-tag-cfd","topic-tag-multiphase","topic-tag-viscoelastic-fluids-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_btv_view_count":["2487"],"_bbp_likes_count":["0"],"_bbp_subscription":["245947"],"_bbpmt_movedon":["2022-08-26 07:11:38"],"_bbpmt_movedfrom":["27819"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["166628"],"_bbp_forum_id":["27792"],"_bbp_engagement":["168421","245947"],"_bbp_voice_count":["2"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["206256"],"_bbp_last_active_id":["206256"],"_bbp_last_active_time":["2022-03-03 18:51:55"]},"test":"gaurav-singhsoton-ac-uk"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/166628","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\/166628\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=166628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}