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Element type of the automatic volume mesher

- December 20, 2024 at 1:52 pm
  
  JP
  Subscriber
  
  Hi everyone,
  Currently I am running ICFD with properties of a blood vessel on LS-DYNA. I am using a user defined surface mesh with the keywords *MESH_SURFACE_ELEMENT, *MESH_SURFACE_NODE and *MESH_VOLUME. Now I am wondering what types of element the automatic mesher in LS-DYNA generates by default. I know that it is tethrahedron, but is it a 4-node tethrahedron for the fluidmesh? Is there discontinuous pressure interpolation, do I have to worry about locking?
  
  Thanks for helping me!
- December 23, 2024 at 4:37 pm
  
  Raman Babu
  Ansys Employee
  
  Hello JP,
  The automatic volume mesh generator for the ICFD solver in LS-DYNA is designed to create tetrahedral elements for 3D simulations. These tetrahedral elements are indeed 4-node tetrahedrons, which are used to discretize the fluid domain. There is no pressure locking in ICFD.
  Regards,
  Raman Babu

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