{"id":460437,"date":"2026-06-28T14:03:56","date_gmt":"2026-06-28T14:03:56","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/extremely-slow-plotting-issue-for-sliding-mesh-simulation-in-fluent\/"},"modified":"2026-06-28T14:06:17","modified_gmt":"2026-06-28T14:06:17","slug":"extremely-slow-plotting-issue-for-sliding-mesh-simulation-in-fluent","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/extremely-slow-plotting-issue-for-sliding-mesh-simulation-in-fluent\/","title":{"rendered":"Extremely Slow Plotting Issue for Sliding Mesh Simulation in FLUENT"},"content":{"rendered":"<p>&lt;p&gt;&lt;p&gt;Hello,&lt;\/p&gt;&lt;p&gt;I have a transient sliding mesh simulation of rotor-stator type, like a stirred tank problem. The simulation runs fine, however, the plotting of the velocity related contour requires very long processing time, like 6-7 hours. I suppose it is doing some interpolation operation to plot the velocity variable in the new grid. The mesh is around 9 million cells. My computer is kind of not slow, 128GB Ram with i9 13900K. So, I wonder if this issue has been faced before? If I can afford waiting 6 to 7 hours, the velocity contour will eventually shown but then it is a painful task if I want to make animation of different timesteps. My version of fluent is 21.0R2. This issue only occurs with sliding mesh. For the preparation of the case, I use the mrf-to-sliding command after a converged MRF run. So, the simulation runs normally, just the postprocessing is too slow in my opinion.&lt;\/p&gt; This 6-7 hours waiting time has to only be done once for each update of the sliding mesh&#8230;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-460437","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["460437"],"_bbp_subscription":["262688"],"_bbp_author_ip":["85.230.182.193"],"_bbp_last_reply_id":["0"],"_bbp_last_active_id":["460437"],"_bbp_last_active_time":["2026-06-28 14:03:56"],"_bbp_reply_count":["0"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["1"],"_bbp_engagement":["262688"],"_btv_view_count":["8"],"_bbp_topic_status":["unanswered"],"_edit_last":["262688"],"_bbp_revision_log":["a:1:{i:460438;a:2:{s:6:\"author\";i:262688;s:6:\"reason\";s:0:\"\";}}"]},"test":"kwwokth-se"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/460437","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":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/460437\/revisions"}],"predecessor-version":[{"id":460438,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/460437\/revisions\/460438"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=460437"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}