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Fluids

Fluids

Topics related to Fluent, CFX, Turbogrid and more.

Acoustic Power Level Showing areas of 0dB in broadband noise model

    • praseethsharma453
      Subscriber

      Hello. I have been trying to simulate broadband noise model acoustics for a certain 2D model and I happen to get these large spots where there is no sound power levels. This issue is only noticeable for acoustics and nothing else. My meshing is correct(afaik). I ran and re-ran simulations to fix this but even then it persists, please help me here I would really appreciate it!

      I notice two major areas of issue, one at the top where there is a large portion of no power, and one near the centreline where there is yet another area of no sound. Why has this happened? I would love to clear this up and fix it

      I have linked the images for the acoustics and the turbulence Kinetic energy, if anyone requires anything else from the simulation file I am happy to share it.

      Thank you

    • Rohan Gulavani
      Ansys Employee

      This could be due to mesh sizes.. Would you please refine the mesh and check. Also its good if you explain your CFD set up. 

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