Fluids

Fluids

how to calculate axial and radial velocities from a turbulent kinetic energy value

    • aidan4321
      Subscriber

      I have completed a steady state simulation using a k-epsilon model


      I then extracted the turbulent kinetic energy at the points required in my model


      I am unsure how to use this data to obtain axial and radial rms velocities?


       


      All help is much appreciated


      Thanks in advance!

    • Rob
      Ansys Employee

      RMS values are calculated in Fluent, and are activated from the Iterate panel. This must be done once you have a reasonably stable solution, and then further iterations are calculated to get the data. Otherwise velocity data is available from the solver directly. 

    • aidan4321
      Subscriber

      Hi,


      Firstly, thank you for your response.


      Secondly, I have looked though all the menus within fluent and am still unable to find an option for RMS velocity values. 


      I have been instructed to extract the turbulent kinetic energy and then use Urms=sqrt(2Ke/3) to obtain values. 


      However, This approach does not give rise to both the axial RMS and radial RMS velocities required.


       


      Again any help is greatly appreciated!

Viewing 2 reply threads
  • You must be logged in to reply to this topic.