Fluids

Fluids

Pressure pulsation in Fluent

    • javat33489
      Subscriber

      Hello colleagues.

      I am researching pressure pulsation in Fluent.

      DES turbulence model.

      I need to identify the amplitudes of pressure fluctuations, so that I can then decompose these data using the Fourier method and use them in harmonic analysis.

      By choosing different substep time sizes, I have different oscillation amplitudes.

      In this regard, I have several questions.

      1. Can I track the pressure amplitudes at the outlet of the product using the AreaAve(TotalPressure) graph? Or maybe look at the AbsolutePressure graphs or the StaticPressure on the outlet?
      2. I have selected a measurement point, but the graph does not work:
      3. I did some research with different time substeps, how do I choose the right one to take amplitudes from there for further solution? Here are the screenshots:Number steps 2000, time step 5e-5

       

      see the rest in the next post>>>

    • javat33489
      Subscriber

      Number steps 2000, time step 0.005

       

       

      Number steps 2000, time step 0.1

    • javat33489
      Subscriber

      Number steps 2000, time step 0.5

       

      Number steps 2000, time step 1

       

      Number steps 200, time step 0.2

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