{"id":43885,"date":"2020-05-12T15:27:50","date_gmt":"2020-05-12T15:27:50","guid":{"rendered":"\/forum\/forums\/topic\/i-need-help-dynamic-meshing-with-polyhedral-mesh\/"},"modified":"2020-05-12T15:27:50","modified_gmt":"2020-05-12T15:27:50","slug":"i-need-help-dynamic-meshing-with-polyhedral-mesh","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/i-need-help-dynamic-meshing-with-polyhedral-mesh\/","title":{"rendered":"I need help: Dynamic meshing with Polyhedral mesh"},"content":{"rendered":"<p>Hi ANSYS everyone!! <img decoding=\"async\" class=\"emoticon\" src=\"\/content\/images\/emoticons\/facebook-smiley-face-for-comments.png\" alt=\"\"><\/p>\n<p><\/p>\n<p>I have some problems and questions about dynamic mesh. Need your help please.<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>I made meshing with fluent meshing and, mesh type is <strong>polyhedral<\/strong>. For next, I want to moving bottom of cylinder and remeshing at the same time. So I compiled UDF and checked the dynamic mesh.<\/p>\n<p><\/p>\n<p>ANSYS user guide said that, it is recommended to use the <strong>diffusion method<\/strong> for polyhedral mesh, and <strong>CutCell zone remeshing method<\/strong> for 3D flow. In my case, my mesh is not tet and hexa so I just selected CutCell zone remeshing which is applied for all cell types.<\/p>\n<p><\/p>\n<p>So I checked that, and next ,moving piston(bottom) is selected for rigid body and partbody1(bottom of cylinder) is checked for deforming in dynamic mesh zones.<\/p>\n<p><\/p>\n<p>I think selection is right, but results failed everytime I attempted. I think it was not remeshed, it just lengthened like a pepero.<\/p>\n<p><\/p>\n<p>I don&#8217;t know what is problem.&nbsp;I attached my case picture, please need your help&#8230;<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>&nbsp;+I tried to attach some pictures, but error is popped up!&nbsp; Without pictures, is it possible to give you a question? If it is hard to understand, I will try again. Thanks in advance!<\/p>\n","protected":false},"template":"","class_list":["post-43885","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["16066"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["2136"],"_bbp_subscription":["249743"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["43885"],"_bbp_forum_id":["27790"],"_bbp_engagement":["199","175581"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["114245"],"_bbp_last_active_id":["114245"],"_bbp_last_active_time":["2020-05-12 16:22:47"]},"test":"yjkim"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/43885","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\/43885\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=43885"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}