Information about Fluent Equations from Theory Guide


I am interested in some things that I could not find in the theory guide:

  1. Gravity is set in operating conditions, and is not included in equations such as the Navier-Stokes equation in the LES model. How do these interact to ensure the eddies are influenced by gravity in the model?
  2. In the VOF model, the incident wave profile uses Kx and Ky, which are defined as Kx=kcos(theta) and ky=ksin(theta). I can't find what theta is defined as anywhere in the theory guide for these equations?
  3. For the wave frequency in the open channel flow, it says U is the uniform incident wave velocity. I see no further explanation on how this was defined?



Best Answer


  • Thank you.

    This answered my questions!

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