{"id":319958,"date":"2023-11-29T09:45:24","date_gmt":"2023-11-29T09:45:24","guid":{"rendered":"\/forum\/forums\/reply\/319958\/"},"modified":"2023-11-29T09:49:11","modified_gmt":"2023-11-29T09:49:11","slug":"319958","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/319958\/","title":{"rendered":"Reply To: Update-Dynamic-Mesh failed. Negative cell volume detected"},"content":{"rendered":"<p>&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Hello,&lt;\/p&gt;&lt;p&gt;I&rsquo;m trying to reproduce the flow around a mechanically controlled door tutorial (<a href=\"https:\/\/www.youtube.com\/watch?v=cNLI0MCB38c\">(846) Ansys Fluent: Flow Around A Mechanically Controlled Door. &#8211; YouTube<\/a>)&nbsp; and my simulation crashed after a few seconds with the error message &ldquo;Update-Dynamic-Mesh failed. Negative cell volume detected&rdquo;.&lt;\/p&gt;&lt;p&gt;Analysing the results in CFD-Post, the problem occurs in the valve movement because it literally enters the mesh.&lt;\/p&gt;&lt;p&gt;How do I fix the error?&lt;\/p&gt;&lt;p&gt;Attached is a picture of the movement of the valve.<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/11\/29-11-2023-1701250791-ControlledDoor1.png\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-319958","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/319958","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/319958\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=319958"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}