{"id":389195,"date":"2024-10-11T02:29:26","date_gmt":"2024-10-11T02:29:26","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fluent-udf-dynamic-mesh-mixture-2\/"},"modified":"2024-10-11T08:56:27","modified_gmt":"2024-10-11T08:56:27","slug":"fluent-udf-dynamic-mesh-mixture-2","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fluent-udf-dynamic-mesh-mixture-2\/","title":{"rendered":"FLUENT UDF dynamic mesh+ MIXTURE"},"content":{"rendered":"<p>&lt;p&gt;Hi everyone, I&#8217;m having problems using FLUENT for stirring simulation again, UDF moving mesh + MIXTURE, and when I run it, I often get a mistake&lt;br&gt;Updating solution at time levels N and N-1.&lt;br&gt;Updating solution at time levels N and N-1. done.&lt;br&gt;&lt;br&gt;Updating mesh at time level N&#8230;&lt;br&gt;set_part_dest_tree: cell not found on myid = 7.(Fig.3)&lt;br&gt;&lt;br&gt;This makes the calculation impossible and I have to proceed from the latest saved transient casdat file, which is obviously frustrating, I would like to know the reason for the error and a possible solution, is it related to the parallel core settings, when I open Flunet to work on it, I always get the message, Process affinity not being set (Fig.2)? I am using 50 cores double precision for simulation work. From the iteration curve(Fig.1), i dont think it is a mesh problem or model issue. hope you guys can answer my query, thanks!&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/11-10-2024-1728612952-68c3e18da911990dd86eb64f36e4db82.jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/11-10-2024-1728613656-FIG2.jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/11-10-2024-1728613746-FIG3.jpg\" alt=\"\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-389195","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":["182.242.225.6"],"_btv_view_count":["169"],"_bbp_topic_status":["unanswered"],"_bbp_subscription":["199"],"_bbp_status":["publish"],"_bbp_topic_id":["389195"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","467439"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["389232"],"_bbp_last_active_id":["389232"],"_bbp_last_active_time":["2024-10-11 08:56:20"]},"test":"yaolong1302091233gmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/389195","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\/389195\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=389195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}