can’t select body and create named selection

- January 1, 2020 at 9:26 pm
  
  Manel40
  Subscriber
  
  1 Geometry
  
  2 : Failure of the named selection
  
  Hi Every Body ;
  
  I am simulating a flow around 3 d airfoil . I have 3 bodies ( airfoil , body of influence , fluid domain)
  
  I have applied boolean function to substract body of influence from fluid domain (and kept the body of influence).
  
  The 3 bodies are all frozen , i have grouped them in one part and applied share topology.
  
  My problem is :
  
  When naming sections in Ansys Meshing , i was enable to select the body of influence ( to name it).
  
  I have thought this may be due to the application of boolean function ( especially when i have say YES to keep the body which was substracted )
  
  So , i have deactivated boolean function , but the problem remains.
  
  Can someone please explain to me what is the problem ?
  
  I am very thankful.
  
  Regards ,
  
  Manel
- January 2, 2020 at 1:38 am
  
  peteroznewman
  Subscriber
  
  I don't know what the problem is, but I suggest you delete or suppress the body of influence, and instead use a Sizing Mesh Control, Sphere of Influence using a Coordinate System for the Sphere Center and enter a radius. Then only one body is sent to Meshing, the air domain. Since your body of influence looks like a cube, there is not much difference between a sphere and a cube.
- January 3, 2020 at 9:29 am
  
  Manel40
  Subscriber
  
  Dear Peter ;
  
  Thanks you very much for the reply . It seems that Ansys Meshing has refined the area containted by the cubic body of influence .
  
  Since this body doesn't affect the physic of the problem , it is not necessary to name IT.
  
  Now i have only 2 zones ( airfoil & fluid domain).
  
  Have a nice day.
  
  Best resgards ,
  
  Manel