{"id":393114,"date":"2024-11-07T08:12:25","date_gmt":"2024-11-07T08:12:25","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cannot-modify-size-field-after-volume-mesh-generation-in-fm\/"},"modified":"2024-11-07T08:12:25","modified_gmt":"2024-11-07T08:12:25","slug":"cannot-modify-size-field-after-volume-mesh-generation-in-fm","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cannot-modify-size-field-after-volume-mesh-generation-in-fm\/","title":{"rendered":"Cannot modify size field after volume mesh generation in FM"},"content":{"rendered":"<p>&lt;p&gt;Hello everyone,&lt;\/p&gt;&lt;p&gt;I&#8217;m learning outline view of Fluent meshing.&lt;\/p&gt;&lt;p&gt;1\u3001I found that after enabling parallel meshing for poly, poly-hexcore and hexcore, it&#8217;s not allowed to modify size field any more. It seems that I have to reimport the CAD model and reset the size field as the pictures shown below. However, in WTM workflow, local sizing can be changed after generated the volume mesh by simply clicking &#8220;revert and edit&#8221;. It&#8217;s inconvenient that local sizing is unchangeable after parallel meshing in outline view.&nbsp;&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/07-11-2024-1730963976-mceclip0.png\" width=\"587\" height=\"396\" \/><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/07-11-2024-1730964103-mceclip2.png\" width=\"581\" height=\"432\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;2\u3001Here is my problem description. For my large model with large amount of grids, parallel meshing is needed in outline view (The mesh size is assumed to be around 15,000,000). The flow domain includes lots of irregular thin flow channels which is hard sweepable. So I have to slice my fluid model into many bodies and plan to generate hybrid mesh containing hexhedra with high aspect ratio and polyhedral mesh in Fluent meshing. Subsequently, I need to make the cell zones merged to get conformal mesh on their interface (I&#8217;m not exactly know if it can be done in Fluent meshing with outline view).&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Any suggestions are highly appreciated.&nbsp;&lt;\/p&gt;&lt;p&gt;Regards&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-393114","topic","type-topic","status-publish","hentry","topic-tag-fluent","topic-tag-fluentmeshing-1","topic-tag-hybrid-mesh","topic-tag-large-models"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello everyone,I&#039;m learning outline view of Fluent meshing.1\u3001I found that after enabling parallel meshing for poly, poly-hexcore and hexcore, it&#039;s not allowed to modify size field any more. It seems that I have to reimport the CAD model and reset the size field as the pictures shown below. 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