Fluids

Fluids

Topics related to Fluent, CFX, Turbogrid and more.

Cannot modify size field after volume mesh generation in FM

    • Dato
      Subscriber

      Hello everyone,

      I'm learning outline view of Fluent meshing.

      1、I found that after enabling parallel meshing for poly, poly-hexcore and hexcore, it's not allowed to modify size field any more. It seems that I have to reimport the CAD model and reset the size field as the pictures shown below. However, in WTM workflow, local sizing can be changed after generated the volume mesh by simply clicking "revert and edit". It's inconvenient that local sizing is unchangeable after parallel meshing in outline view. 

       

      2、Here is my problem description. For my large model with large amount of grids, parallel meshing is needed in outline view (The mesh size is assumed to be around 15,000,000). The flow domain includes lots of irregular thin flow channels which is hard sweepable. So I have to slice my fluid model into many bodies and plan to generate hybrid mesh containing hexhedra with high aspect ratio and polyhedral mesh in Fluent meshing. Subsequently, I need to make the cell zones merged to get conformal mesh on their interface (I'm not exactly know if it can be done in Fluent meshing with outline view). 

       

       

      Any suggestions are highly appreciated. 

      Regards

    • Keyur Kanade
      Ansys Employee

      Once size field is calculated, you can not change size functions. To change size functions, you can deleted computed size field by using 'Delete' option in the same panel you have shown above. 

      You can connect 2 meshes if face mesh on both faces at the interface are exactly same. You will need to use Boundary → Merge nodes option for that. If they are not exactly same then please proceed with non conformal mesh. 

      Please go through help manual for more details 

      Regards,

      Keyur

      How to access Ansys Online Help Document

      Guidelines on the Student Community

      Fluids Engineering Courses | Ansys Innovation Courses

       

       

Viewing 1 reply thread
  • You must be logged in to reply to this topic.