{"id":393023,"date":"2024-11-06T16:20:09","date_gmt":"2024-11-06T16:20:09","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/water-is-stuck-in-my-water-wheels-baldes\/"},"modified":"2024-11-06T16:22:00","modified_gmt":"2024-11-06T16:22:00","slug":"water-is-stuck-in-my-water-wheels-baldes","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/water-is-stuck-in-my-water-wheels-baldes\/","title":{"rendered":"Water is stuck in my water wheel&#8217;s blades"},"content":{"rendered":"<p>&lt;p&gt;&lt;p&gt;Hello everyone,&lt;br&gt;&lt;br&gt;I&#8217;m currently simulating a water wheel on fluent and I encountered a problem. The water in the blades that exit the water seems stuck and gravity isn&#8217;t pulling it down. It is weird because the water has no problem getting inside the rotating mesh, but it seems that it is stuck in the interior.&lt;br&gt;I think it might be due to the interface between the rotating mesh and the stationary mesh, but I used a symmetric interface (I created 2 circular contacts, one with the inner domain (rotating domain) circular boundary as the source and the outer domain circular boundary as the target, and another contact when I switched the source and the target). &lt;\/p&gt;&lt;p&gt;I thought that Fluent interpreted the circular boundary of the rotating mesh as a wall, but in that case, the water should still &#8220;fall&#8221; until it hits the boundary.&lt;\/p&gt;&lt;p&gt;but here it seems that there is a force pushing the water up and the latter forms a perfectly horizontal air-water-interface inside the blades that exit the water.&lt;\/p&gt;&lt;p&gt;Does someone knows where the problem could come from ?&lt;br&gt;&lt;br&gt;Regards, &lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/06-11-2024-1730909150-water_wheel_weird_behavior.png\" alt=\"\" \/>&lt;\/p&gt;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-393023","topic","type-topic","status-publish","hentry","topic-tag-air-waterflow-1","topic-tag-mesh-interfaces","topic-tag-rotating-domain"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["479239","199"],"_bbp_author_ip":["130.243.150.42"],"_btv_view_count":["193"],"_bbp_topic_status":["unanswered"],"_edit_last":["479239"],"_bbp_topic_id":["393023"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","479239"],"_bbp_voice_count":["2"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["393034"],"_bbp_last_active_id":["393034"],"_bbp_last_active_time":["2024-11-06 16:56:17"]},"test":"benjamin-triffauxstudent-uclouvain-be"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/393023","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\/393023\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=393023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}