{"id":382541,"date":"2024-09-12T18:45:51","date_gmt":"2024-09-12T18:45:51","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/382541\/"},"modified":"2024-09-12T18:45:51","modified_gmt":"2024-09-12T18:45:51","slug":"382541","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/382541\/","title":{"rendered":"Reply To: resolution boundary layer"},"content":{"rendered":"<p>&lt;p&gt;Hallo again,&nbsp;&lt;\/p&gt;&lt;div&gt;thank you very much for the answer. my mesh looks like below. when I check element quality, a column with element quality less than0.1 is displayed, and when I select it, only inflation layers are displayed. Skewness and aspect ratio are also a problem, especially at the inclined part.&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;also I had another question, I read the ANSYS User Guide for Near-Wall Mesh Guidelines (Section 12.3.1) and it says:&lt;\/div&gt;&lt;div&gt;&#8221;In summary to achieve the best results with the Spalart-Allmaras model, one should use either a very fine near-wall mesh (on the order of $y_{\\rho}^+ = 1$ for the first near-wall cell center ) or a mesh with $y^+ \\geq 30$&#8221;, but I don&#8217;t understand something.&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;according to this, I can either use a very fine mesh, for example with Inflation layers and then&nbsp; y+ should be &lt;1 or I can remove the layers and have a coarse mesh but y+ must be between 30 and 300. Did I understand it correctly? Furthermore, what is y+_rho?<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/09\/12-09-2024-1726166592-mceclip0.png\" \/>&lt;\/div&gt;<\/p>\n","protected":false},"template":"","class_list":["post-382541","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/382541","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/382541\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=382541"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}