{"id":248596,"date":"2023-02-03T18:26:21","date_gmt":"2023-02-03T18:26:21","guid":{"rendered":"\/forum\/forums\/topic\/how-to-make-the-cell-zone-inflation-surrounding-the-rigid-body-move-with-it\/"},"modified":"2023-02-07T05:50:12","modified_gmt":"2023-02-07T05:50:12","slug":"how-to-make-the-cell-zone-inflation-surrounding-the-rigid-body-move-with-it","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-make-the-cell-zone-inflation-surrounding-the-rigid-body-move-with-it\/","title":{"rendered":"How to make the cell zone (inflation) surrounding the rigid body move with it?"},"content":{"rendered":"<p>G&#8217;day,<\/p>\n<p>I&#8217;m working on the simulation of vortex-induced vibration, and I followed the hint given in the user guide: to preserve the prism layer cell zone (inflation) which surrounds the movable rigid body, one should separate it from the fluid domain and assign &#8220;<strong>rigid body<\/strong>&#8221; to it in <strong><em>Dynamic Mesh Zones<\/em><\/strong>. The inflation part (<em>CV:011<\/em> as the pic shows) needs a six DOF UDF to make it move with the rigid body, so I assigned the UDF of the rigid body to it. But I&#8217;m not sure&#8230;is this correct? The UDF has properties of the rigid body (mass, inertia,&#8230;etc.), so the inflation will have the same mass and inertia? This seems unreasonable.<\/p>\n<p>Hope someone can help me out. Thank you.<img decoding=\"async\" title=\"Dynamic mesh zones setup\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/02\/03-02-2023-1675448739-Screenshot 2023-02-03 221437.png\" alt=\"\"><\/p>\n","protected":false},"template":"","class_list":["post-248596","topic","type-topic","status-closed","hentry","topic-tag-1-way-fsi","topic-tag-cfd-icfluent","topic-tag-dynamic-mesh","topic-tag-one-way-coupling-2","topic-tag-six-dof-solver"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["273724","13659"],"_bbp_author_ip":["23.192.164.14"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["711"],"_bbp_likes_count":["1"],"_bbp_status":["publish"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["248596"],"_bbp_forum_id":["27792"],"_bbp_engagement":["13659","273724"],"_bbp_voice_count":["2"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["248957"],"_bbp_last_active_id":["248957"],"_bbp_last_active_time":["2023-02-07 13:39:43"]},"test":"f24071085gs-ncku-edu-tw"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/248596","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\/248596\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=248596"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}