LS Dyna

LS Dyna

ICFD- Volume Results

    • Laura Pałys
      Subscriber

      Hello, does anyone know how to get the results for the entire volume domain automatically generated by ICFD? I need to calculate the shear stresses. For this purpose, I need information about the velocity gradients or shear rate. How to generate this information for each time step?

      I will be grateful for every information.

      Best,

      Laura

    • Reno Genest
      Ansys Employee

      Hello Laura,

      It is usually better to visualize the results on a section of the volume instead of the full volume.

      You can output the shear as follows:

       

      An alternative is to output the drag using *ICFD_DATABASE_DRAG. See the user manual for more information.

       

      Let me know if this answers your question on not.

       

      Reno.

       

       

       

    • Laura Pałys
      Subscriber

      Hello, Reno

      I agree that sometimes it's better to visualize results only for individual sections. In my case, I need this information to use them to calculate other flow equations. Therefore, I need this information in the form of an external file to be able to perform calculations on it.

      Best,

      Laura

    • Reno Genest
      Ansys Employee

      Hello Laura,

      Have you tried *ICFD_DATABASE_DRAG? See the user manual Vol III for more information. This keyword creates a text file output for the drag force.

       

      Reno.

    • Laura Pałys
      Subscriber

      The best solution is to calculate the shear stresses in Ensight or Paraview. The topic can be closed.

    • Reno Genest
      Ansys Employee

      Hello Laura,

      Thank you for letting me know. I saw that my colleague asked the developer for advice on this. Here is the post for the benefit of other users:

      https://forum.ansys.com/forums/topic/viscous-drag-force-into-shear-stress-value/

       

      Have a good day!

       

      Reno.

Viewing 5 reply threads
  • You must be logged in to reply to this topic.