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[FAQ]

When loading a mesh file (* .msh / *. Msh.gz) into Fluent, the following warning message may be displayed in the console window. Warning: Unrecognized grid section 11. and Warning: Unrecognized grid section 2011. This is displayed because the edge zone information that does not need to be read by the solver has been written to the mesh file. If no error is displayed after performing Mesh-Check, it can be ignored, so you can set the condition as it is and calculate. * “Grid section 11” corresponds to the edge in the grid section of the mesh. * “Grid section 2011” indicates that it was saved in single precision binary format, with 20 added just before 11 above. In particular, if you created a mesh with Fluent Meshing, it will often appear if you forget to run “Prepare for Solve”, so try running Prepare for Solve (RMB on Model in the Outline View) before saving the mesh fill. Related manuals B.3.8. Edges https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v194/flu_ug/tgd_user_format_edges.html B.2. Formatting Conventions in Binary Files and Formatted Files https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v194/flu_ug/tgd_user_format_convbinary.html