{"id":368660,"date":"2024-05-27T07:25:49","date_gmt":"2024-05-27T07:25:49","guid":{"rendered":"\/forum\/forums\/topic\/dynamic-mesh-for-falling-object-in-contact-with-surface\/"},"modified":"2024-05-27T07:25:49","modified_gmt":"2024-05-27T07:25:49","slug":"dynamic-mesh-for-falling-object-in-contact-with-surface","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/dynamic-mesh-for-falling-object-in-contact-with-surface\/","title":{"rendered":"Dynamic mesh for falling object in contact with surface"},"content":{"rendered":"<p class=\"MsoNormal\"><span lang=\"ES-CL\">Hi everyone,<\/span><\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify\">I&#8217;m trying to model a 2D case of a moving fin, which has a prescribed motion given by a udf and the 6DOF method. This &ldquo;moving fin&rdquo; moves downwards as time progresses and is treated as a rigid body, as shown in the picture below.<br \/><img decoding=\"async\" title=\"Moving fin\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/27-05-2024-1716794591-moving_fin.jpg\" alt=\"\"><\/p>\n<p>At the left side of the fin, there is a solid region and the rest of the domain is filled with water. I had some questions in relation to the dynamic mesh setup:<\/p>\n<p><!-- [if !supportLists]-->&#8211; I&rsquo;ve seen tutorials of falling objects but they usually exclude the interior mesh of the moving objects and instead prescibe a rigid body motion to the object&rsquo;s boundary. In my case, I&rsquo;m meshing the interior of the object (moving fins) and prescribing the motion to the interior cells. Does it make any difference if I prescribe a motion to the walls as well?<\/p>\n<p><!-- [if !supportLists]-->&#8211; Is it possible to have a moving solid object (moving fins) in contact with another stationary solid region (heating bar)? Or do I always need a fluid region in between for the dynamic mesh to work properly?<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify\">Any feedback is fully appreaciated.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify\">Jos&eacute;<\/p>\n","protected":false},"template":"","class_list":["post-368660","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["337671","13659"],"_bbp_author_ip":["184.24.96.177"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["288"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["368660"],"_bbp_forum_id":["27792"],"_bbp_engagement":["13659","337671"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["369122"],"_bbp_last_active_id":["369122"],"_bbp_last_active_time":["2024-05-29 18:56:10"]},"test":"j-m-amigoalvarez-1student-tudelft-nl"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/368660","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\/368660\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=368660"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}