{"id":382220,"date":"2024-09-10T18:37:59","date_gmt":"2024-09-10T18:37:59","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/resolution-boundary-layer\/"},"modified":"2024-09-10T18:37:59","modified_gmt":"2024-09-10T18:37:59","slug":"resolution-boundary-layer","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/resolution-boundary-layer\/","title":{"rendered":"resolution boundary layer"},"content":{"rendered":"

<div>Hello,<\/div><div> <\/div><div>I have a geometry as below in my simulation (I means inlet, O outlet) and I have some questions regarding resolving the boundary layer.<\/div><div>I want to use spalart allmaras turbulence model.<\/div><div>When I use inflation layers for this geometry, y+ has values \u200b\u200bsmaller than five. But in this case, due to the inclined and curved part, the quality of the mesh is not very good, especially the orthogonality and the residual for continuity is not lower than e-02.<\/div><div>If I remove the inflation layers, the residuals are at least one order less, but y+ is 200.<\/div><div>My questions are as follows: what should be the value of y+ and what would you suggest me to do? can you use a wall function with this turbulence model? or otherwise, how can you choose inflation layers, so that I have the allowed values \u200b\u200bof y+ and a mesh with good quality as well. P.S. My mesh is triangular. \"\"<\/div><\/p>\n","protected":false},"template":"","class_list":["post-382220","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t