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Preprocessing

Preprocessing

Topics related to geometry, meshing, and CAD.

Error when calculating volumetric region

    • rm19g14
      Subscriber

      Hello, I have a model that I cannot compute the volumetric region for I get the error 



      Warning : No regions computed.


      Check for leaks and self-intersections in the mesh.


       


      done


       


       


       


      region-name number of baffles zone ids of baffles


       






       


      external baffles 14 (21 20 19 18 17 16 15 14 13 12 11 10 9 8)



       


      I have run all available diagnostics commands but still cannot compute the volumetric region.


       



       


      /diagnostics quality general-improve objects (en*) skewness 0.95 40 30 yes
      /diagnostics quality general-improve objects (en*) skewness 0.9 40 30 yes
      /diagnostics quality general-improve objects (en*) skewness 0.8 40 30 yes
      /diagnostics quality general-improve objects (en*) skewness 0.7 40 30 yes
      /diagnostics quality general-improve objects (en*) skewness 0.6 40 30 yes
      /diagnostics quality general-improve objects (en*) skewness 0.5 40 30 yes


      /diagnostics quality collapse objects (en*) skewness 0.99 40 30 no
      /diagnostics quality collapse objects (en*) skewness 0.98 40 30 no
      /diagnostics quality collapse objects (en*) skewness 0.97 40 30 no
      /diagnostics quality collapse objects (en*) skewness 0.96 40 30 no
      /diagnostics quality collapse objects (en*) skewness 0.95 40 30 no
      /diagnostics quality collapse objects (en*) skewness 0.9 40 30 no
      /diagnostics quality collapse objects (en*) skewness 0.85 40 30 no


      /diagnostics quality general-improve objects (en*) skewness 0.95 40 30 yes
      /diagnostics quality general-improve objects (en*) skewness 0.9 40 30 yes
      /diagnostics quality general-improve objects (en*) skewness 0.8 40 30 yes
      /diagnostics quality general-improve objects (en*) skewness 0.7 40 30 yes
      /diagnostics quality general-improve objects (en*) skewness 0.6 40 30 yes
      /diagnostics quality general-improve objects (en*) skewness 0.5 40 30 yes


      /diagnostics quality general-improve objects (en*) skewness 0.95 40 30 yes
      /diagnostics quality general-improve objects (en*) skewness 0.9 40 30 yes
      /diagnostics quality general-improve objects (en*) skewness 0.8 40 30 yes
      /diagnostics quality general-improve objects (en*) skewness 0.7 40 30 yes
      /diagnostics quality general-improve objects (en*) skewness 0.6 40 30 yes
      /diagnostics quality general-improve objects (en*) skewness 0.5 40 30 yes


      /diagnostics face-connectivity fix-free-faces face-zones (list 'front 'middle 'rear 'wheel-fr 'wheel-rr) stitch 0.05 1
      /diagnostics face-connectivity fix-self-intersections face-zones (list 'front 'middle 'rear 'wheel-fr 'wheel-rr) fix-self-intersection
      /diagnostics face-connectivity fix-duplicate-faces face-zones (list 'front 'middle 'rear 'wheel-fr 'wheel-rr)
      /diagnostics face-connectivity fix-spikes face-zones (list 'front 'middle 'rear 'wheel-fr 'wheel-rr) 200
      /diagnostics face-connectivity fix-islands face-zones (list 'front 'middle 'rear 'wheel-fr 'wheel-rr) 12
      /diagnostics face-connectivity fix-slivers face-zones (list 'front 'middle 'rear 'wheel-fr 'wheel-rr) 0 0.7
      /diagnostics face-connectivity fix-point-contacts face-zones (list 'front 'middle 'rear 'wheel-fr 'wheel-rr)
      /diagnostics face-connectivity fix-invalid-normals face-zones (list 'front 'middle 'rear 'wheel-fr 'wheel-rr)
      /diagnostics face-connectivity fix-multi-faces face-zones (list 'front 'middle 'rear 'wheel-fr 'wheel-rr) all-above 5 20 20



       


      I believe it may have something to do with leaking geometry but I cant seem to find anything that's causing the problem, has anyone come across this before? Any help would be much appreciated

    • Keyur Kanade
      Ansys Employee

      It says that you geometry is not watertight. I has a leak and Fluent Meshing can not find a single closed volume. 


      Please check your geometry if it has any holes or some missing component. 


      https://www.youtube.com/watch?v=VKW6_-Rteks


       

    • rm19g14
      Subscriber

      thank you for your reply, I have gone into spaceclaim and found the source of the error


       


      regards rikesh

    • Keyur Kanade
      Ansys Employee

      Good to know that you found the source of error. 


      Can you please mark this as 'Is Solution' to help others on forum. 

    • MostafaSeif
      Subscriber

      nope, doesn't seem like a solution to me

    • atulsingh92
      Subscriber

      Could you tell, how was the problem solved?


      As I have to automate, opening space claim is not desirable. Should be corrected in fluent meshing itself for my case.


       

    • Choi sumin
      Subscriber

      Can i see the youtube video another mean? i can't watch through above URL 

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