Fluids

Fluids

How to get a “flater” velocity profile?

    • simonhenn
      Subscriber

      Hi guys,

      I am currently working on a simulation of an air flow through a channel for my bachelor's thesis. My goal is to match the actually measured data in the test stand. The boundary conditions are one pressure inlet and two pressure outlets, though I've already tried a velocity inlet which didn't really change much. I use the k-omega-SST model with default turbulence settings.

      This is the geometry:

    • Rob
      Ansys Employee
      I'd check y+ to ensure the near wall flow was correct and that you're adequately resolving the flow in the middle of the domain. It's also a good idea to confirm the experimental conditions, have you matched the domain mass flow precisely and are you confident about the experimental accuracy? As simulation engineers we're always focused on the computational side of things, but whilst we always look for errors in the model it's quite common that we're not quite modelling the real system so the model is correct. n
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