Doubts regarding Linear tet mesh

SmeetSmeet Member Posts: 2

I keep getting this warning that linear tet mesh should be avoided to get correct results. Why is it so?

I tried hex mesh but I keep getting 'the mesh is intersecting' error and the mesher fails. Due to this error, I tried linear patch conforming tet mesh. If this doesn't get me correct results then what are the alternatives?

Thank you.

Answers

  • kkanadekkanade Posts: 3,319Forum Coordinator

    This could be due to geometry problem or due to wrong mesh sizing. Can you please check following? 

    1. Please check geometry in SpaceClaim. Select geometry in structure tree --> Use right click --> Select Check Geometry. The geometry should be error free to proceed. If geometry has any errors, please modify/recreate geometry at those places.
    2. If geometry is error free, then please select 'CFD' as Physics Preference in meshing. 
    3. Please give body/face/edge sizing so that mesh has sufficient mesh density and resolve important features. 
    4. For the error, please use right click on the error and click on 'problematic geometry'. This will highlight geometry which is failing to mesh. You will need to modify geometry at this location or change mesh sizing. 
    5. If your meshing has special controls like periodicity, please check if those are correctly defined. 


    Regards,

    Keyur

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