{"id":163583,"date":"2021-10-31T20:15:47","date_gmt":"2021-10-31T20:15:47","guid":{"rendered":"\/forum\/forums\/topic\/issues-with-skewness-and-orthogonal-quality-and-y-plus-value\/"},"modified":"2021-11-11T20:13:13","modified_gmt":"2021-11-11T20:13:13","slug":"issues-with-skewness-and-orthogonal-quality-and-y-plus-value","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/issues-with-skewness-and-orthogonal-quality-and-y-plus-value\/","title":{"rendered":"Issues with Skewness and Orthogonal Quality and Y-plus value"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hello all,<\/p>\n<p>I am working on an airfoil with a trailing edge flap at 25 degree. I have done quad structured meshing. I have some questions regarding that.<\/p>\n<p>Total number of elements are 61,760 and total nodes are 62,524. 32 Elements have the Skewness of 0.886, whereas 309 elements have 0.121 Orthogonal quality. According to Ansys meshing guide, Skewness of 32 elements is under &quot;Acceptable&quot; level, whereas 309 of the elements with 0.121 Orthogonal quality are in &quot;Bad&quot; quality level. Despite struggling with the orthogonal and skewness improvement, I was unable to do that. So I tried Mesh Adaption in Ansys Fluent to bring both Skewness and Orthogonal in the levels ranging from 0.50-0.80 and 0.20 &#8211; 0.69 respectively. In this situation, is it okay to use Mesh Adaption in Ansys Fluent while I am unable to fix the skewness and orthogonal quality in Ansys meshing?<\/p>\n<p>Secondly, my Y-plus value is 7. I am using Spalart Allmaras model with Reynolds number of 200,000. (Density 1.225 kg\/m3, Chord Length 1m, Viscosity 1.7894e-5, Velocity 2.92 m\/s). Looking at the mesh and model, is my Y-plus value of 7 okay for S-A turbulence model? What should be the the minimum or maximum Y-plus value?<\/p>\n","protected":false},"template":"","class_list":["post-163583","topic","type-topic","status-closed","hentry","topic-tag-mesh-adaption","topic-tag-MeshSkewnessAspectRatioOrthogonality-1","topic-tag-orthogonal-quality-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":[""],"_bbp_old_reply_author_name_id":["Anonymous"],"_bbp_old_is_reply_anonymous_id":["false"],"_btv_view_count":["3259"],"_bbp_likes_count":["0"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["163583"],"_bbp_forum_id":["27790"],"_bbp_engagement":["25","167771"],"_bbp_voice_count":["2"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["196461"],"_bbp_last_active_id":["196461"],"_bbp_last_active_time":["2021-11-11 20:13:13"]},"test":"janetj"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/163583","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\/163583\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=163583"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}