{"id":392484,"date":"2024-11-02T22:21:42","date_gmt":"2024-11-02T22:21:42","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/interface-of-a-porous-and-non-porous-fluids\/"},"modified":"2024-11-19T05:16:17","modified_gmt":"2024-11-19T05:16:17","slug":"interface-of-a-porous-and-non-porous-fluids","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/interface-of-a-porous-and-non-porous-fluids\/","title":{"rendered":"Interface of a porous and non-porous fluids"},"content":{"rendered":"<p>&lt;p&gt;&lt;p&gt;Hi&lt;\/p&gt;&lt;p&gt;I am trying to model teh flow in this system, that I have a non-porous fluid coming and interacting with a porous fluid and then leaves it to a non-porous fluid, and eventually the outlet. My inlet is the mass flow rate and my outlet is a pressure. The model initialize pressty good but I am having a serious problem with convergence. My mesh is really good quality and fine enough, my geometry is smooth and nice too. And I am sure my BCs are all correct, I just do not know if I missing something here. Maybe I need to define an interface between the porous and non-porous regions or change teh solver? my fluid is incompressible and just simple water. Would appreciate any helps and ideas here? My mesh is way finer than this pic so I am sure there is no problem with the mesh. I went to even 20 million elements fine mesh but still the same problem.&lt;br&gt;&nbsp;&lt;\/p&gt;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-392484","topic","type-topic","status-publish","hentry","topic-tag-porous","topic-tag-porous-jump-boundary-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["472012","199"],"_bbp_author_ip":["137.53.241.36"],"_btv_view_count":["202"],"_bbp_topic_status":["unanswered"],"_edit_last":["472012"],"_bbp_revision_log":["a:1:{i:394165;a:2:{s:6:\"author\";i:472012;s:6:\"reason\";s:0:\"\";}}"],"_bbp_topic_id":["392484"],"_bbp_forum_id":["27796"],"_bbp_engagement":["199","472012"],"_bbp_voice_count":["2"],"_bbp_reply_count":["7"],"_bbp_last_reply_id":["393808"],"_bbp_last_active_id":["393808"],"_bbp_last_active_time":["2024-11-12 13:51:59"]},"test":"karimiohsu-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/392484","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\/392484\/revisions"}],"predecessor-version":[{"id":394165,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/392484\/revisions\/394165"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=392484"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}