Adding Darcy’s Law( Cozney-Carman) expression as a source term in momentum equation

    • waqas12345

      Hello all.

      I am new to simulating the laser welding process using Ansys fluent. In the momentum equation, cozney-Carman expression is added as source term on the right hand side of the equation. May I please know that is there any way that I could write this source term using an " Expression" function" ?

      The image of expression is also attached where fL is a liquid fraction, v is a velocity and rest are all constants.

      Any help shall be highly appreciated.

      Thank you in advance.

    • DrAmine
      Ansys Employee
      Better to do that per UDF so that you can add coefficient of linearization. UDF manual has an example how to add source terms into the Momentum equations.
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