missing face on meshing window

- March 4, 2020 at 9:34 pm
  
  avitalmic
  Subscriber
  
  hello!
  
  im trying to run a simulation on an AVF connection. my arteriovenous model is an STL file which i edited (extruded edges) on spaceclaim and saved as scdoc.
  
  i imported the file into desigmodeler and when i move to meshing, i face two problems:
  
  1. i can't mesh the model and get an error
  
  2. i miss a face from the model
  
  pics:
- March 5, 2020 at 5:00 am
  
  Keyur Kanade
  Ansys Employee
  
  the best way to mesh stl is using Fluent Meshing. please check following links.
  
  https://www.youtube.com/watch?v=S9VGLXOIFZQ
  
  https://www.youtube.com/watch?v=EZ0ukx3zpJI
  
  when you import stl in spaceclaim, it will have many faceted faces. if you convert them into geometry faces then each one will convert into one geometry face and it would be mess for meshing.
  
  if you still want to persist with spaceclaim, please check if you can create geometry out of stl using skin tool or any other tool.
  
  https://www.youtube.com/watch?v=8SF_IpH74xA
  
  Regards,
  
  Keyur
  
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- March 5, 2020 at 7:48 pm
  
  avitalmic
  Subscriber
  
  thank you very much Keyur! ill check those links.
  
  I'd like to understand if the root of the problem is with the fact that the original file is STL, or with the extrude i made in spaceclaim. I ask because first i only cut the edges of the STL and did manage to run a full simulation in Fluent. after that, i've extrude the edges and the whole mess began.
  
  also i want to mention that in the first time i converted the model to solid. in the second time i also converted the model to solid but couldnt merge them, so i got 4 parts.
  
  Avital.
- March 6, 2020 at 2:49 pm
  
  Rob
  Forum Moderator
  
  Delete the mesh. Then mesh the bifurcation (click on it, right click & mesh selected body). Then mesh the extruded sections.
- March 9, 2020 at 9:07 am
  
  avitalmic
  Subscriber
  
  thank you! i'm stil having problem with the missing face. what can i do about it?
- March 11, 2020 at 4:03 am
  
  Keyur Kanade
  Ansys Employee
  
  you converted facets to solid and then extruded to get more solid bodies. now as the converted solid may not have correct definition, it may fail in extrusion and also may have geometry errors in extrusion. It may face issues in connecting these two solids as well.
  
  So best way is to create solid from facets with the skin tool and then proceed.
  
  Regards,
  
  Keyur
  
  If this helps, please mark this post as 'Is Solution' to help others.
  
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