{"id":428925,"date":"2025-04-14T21:45:17","date_gmt":"2025-04-14T21:45:17","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/layering-mesh-with-two-touching-zones\/"},"modified":"2025-04-14T21:45:17","modified_gmt":"2025-04-14T21:45:17","slug":"layering-mesh-with-two-touching-zones","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/layering-mesh-with-two-touching-zones\/","title":{"rendered":"Layering mesh with two touching zones"},"content":{"rendered":"<p>&lt;p&gt;Hi all,&lt;\/p&gt;&lt;p&gt;Hope all is well with you. I&#8217;m trying to implement 2 layering zones inside my simulation both of which are occurring at the same time. I get a SIGSEGV error with the message &#8220;free(): corrupted unsorted chunks.&#8221; I don&#8217;t think my UDF is a problem because I tested it on a simpler dynamic case, and didn&#8217;t get this error. I think my error comes from how I specify the boundary conditions but I wanted to double check (see figure below). My question is: Is it possible for two touching zones to layer in opposite directions provided that the mesh interface between the two zones are stationary? Thank you again so much!&lt;\/p&gt;&lt;p style=&#8221;margin: 0in; font-family: &#8216;Aptos&#8217;, sans-serif; font-size: 12pt;&#8221;&gt;&lt;span style=&#8221;color: black;&#8221;&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/04\/14-04-2025-1744666965-blobid0.png\" width=\"795\" height=\"228\" \/><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/04\/14-04-2025-1744667009-mceclip0.png\" \/>&lt;\/span&gt;&lt;\/p&gt;&lt;p style=&#8221;margin: 0in; font-family: &#8216;Aptos&#8217;, sans-serif; font-size: 12pt;&#8221;&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-428925","topic","type-topic","status-publish","hentry","topic-tag-dynamic-mesh","topic-tag-layering"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["428925"],"_bbp_subscription":["295467","13659","295638"],"_bbp_author_ip":["128.61.187.37"],"_bbp_last_reply_id":["431937"],"_bbp_last_active_id":["431937"],"_bbp_last_active_time":["2025-05-19 09:20:39"],"_bbp_reply_count":["10"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["3"],"_bbp_engagement":["295467","13659","295638"],"_btv_view_count":["241"],"_bbp_topic_status":["unanswered"]},"test":"zwong32gatech-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/428925","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\/428925\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=428925"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}