{"id":299430,"date":"2023-03-21T18:38:26","date_gmt":"2023-03-21T18:38:26","guid":{"rendered":"\/forum\/forums\/topic\/problem-with-fluid-solid-physics-in-discovery\/"},"modified":"2023-05-24T10:57:00","modified_gmt":"2023-05-24T10:57:00","slug":"problem-with-fluid-solid-physics-in-discovery","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/problem-with-fluid-solid-physics-in-discovery\/","title":{"rendered":"Problem with fluid-solid physics in Discovery"},"content":{"rendered":"

Hi everyone !<\/p>\n

I’m a student from Switzerland, working on the development of a High voltage battery for a formula student racecar. I’m new to Discovery and I’m trying to run a “simple” thermal simulation of our battery with li-ion cells and air cooling.  <\/p>\n

The model is as follow: <\/p>\n

\"\"<\/p>\n

I have rectangle shapes for the cells that are heating, touching aluminium plates for convection cooling. I created the air volume and inlet \/ outlet for air flow. <\/p>\n

The simulation does not work because discovery can’t define the proper physic on the interface between the heating body and the fluid (faces that are not connected to the aluminium plate ). I assume the configuration of conducting non-slip walls (fluid) and thermal physic is wrong. <\/p>\n

The warning: impossible to determine the correct physical configuration to solve. Make sure the geometry is free of interfering bodies and try to mark faces or use repair tools. <\/strong><\/p>\n

The faces that poses problems:<\/p>\n

\"\"<\/p>\n

 <\/p>\n

I tried to remove the cells in the fluid-solid interface and set the exposed faces to convection or isolated, but nothing works !<\/p>\n

I really hope to find help here, I’m stuck on this project :\/. Let me know if there is anything else needed<\/u>, or if you have any path that could help. ?<\/p>\n

 <\/p>\n

Really appreciated,<\/p>\n

 <\/p>\n

Daniel.B<\/p>\n

Bern University of Applied science<\/p>\n

Bern Racing Team<\/p>\n

\u200b<\/p>\n

🛈<\/span>\u200b<\/p>\n

This post originally contained file attachments which have been removed in compliance with the updated \u200b<\/p>\n

Ansys Learning Forum Terms & Conditions<\/a><\/b>\u200b<\/p><\/div>\n","protected":false},"template":"","class_list":["post-299430","topic","type-topic","status-closed","hentry","topic-tag-ansys-discovery","topic-tag-fluid-solid-heat-transfer-3"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["279613"],"_btv_view_count":["549"],"_bbp_likes_count":["1"],"_bbpmt_movedon":["2023-08-17 12:10:50"],"_bbpmt_movedfrom":["296275"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["299430"],"_bbp_forum_id":["27789"],"_bbp_engagement":["2328","279613"],"_bbp_voice_count":["2"],"_bbp_reply_count":["13"],"_bbp_last_reply_id":["300192"],"_bbp_last_active_id":["300192"],"_bbp_last_active_time":["2023-03-31 04:49:43"]},"test":"daniel-beckstudents-bfh-ch"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/299430","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\/299430\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=299430"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}