{"id":459353,"date":"2026-06-05T00:26:18","date_gmt":"2026-06-05T00:26:18","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/maximum-aspect-ratio-for-aerodynamics\/"},"modified":"2026-06-05T00:26:18","modified_gmt":"2026-06-05T00:26:18","slug":"maximum-aspect-ratio-for-aerodynamics","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/maximum-aspect-ratio-for-aerodynamics\/","title":{"rendered":"Maximum aspect ratio for Aerodynamics"},"content":{"rendered":"<p>&lt;p&gt;Hi everyone&lt;\/p&gt;&lt;p&gt;I am currently doing an external aerodynamics simulation in ANSYS Meshing and have a few questions regarding mesh quality metrics, specifically the aspect ratio.After generating my initial mesh, my maximum aspect ratio is around 700. I am concerned that this value is too high and might lead to convergence issues or numerical diffusion in Fluent.&lt;\/p&gt;&lt;p&gt;I would appreciate some guidance on the following: Acceptable Limits: For a external aerodynamics case, what is considered an acceptable maximum aspect ratio?&lt;\/p&gt;&lt;p&gt;What is considered a &#8220;good&#8221; target value.&lt;\/p&gt;&lt;p&gt;Defeating High Aspect Ratios:&lt;\/p&gt;&lt;p&gt;&nbsp;What are the best strategies or settings in ANSYS Meshing to reduce this peak aspect ratio while maintaining strict aerodynamic accuracy?&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Thank you for your advice&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-459353","topic","type-topic","status-publish","hentry","topic-tag-fluent-cfd-ansys-1","topic-tag-mesh","topic-tag-meshing","topic-tag-simulation"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["459353"],"_bbp_subscription":["556919","8124"],"_bbp_author_ip":["2a02:1388:b03:3a4f:d51a:c42a:6389:ba42"],"_bbp_last_reply_id":["459429"],"_bbp_last_active_id":["459429"],"_bbp_last_active_time":["2026-06-06 13:20:09"],"_bbp_reply_count":["4"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["556919","8124"],"_btv_view_count":["42"],"_bbp_topic_status":["unanswered"]},"test":"sas2400038uoa-gr"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/459353","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\/459353\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=459353"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}