Topics relate to Fluent, CFX, Turbogrid and more

Pressure amplitude Limit cycle

    • suchita kadam

      Dear Sir

      I am doing simulation on Thermoacostic simulation in transient Ansys Fluent. I am able to plot the pressure

      ampltude plot as above, It seems that the acoustic instability developed but it does not withstand the limit cyle. so why the limit cycle is not establshed here. As I tried it so many times but not possible to find. Kindly suggest the solution.

    • Federico Alzamora Previtali

      Can you share more details on what your domain looks like?

      What turbulence/acoustics model are you using?

      Is your mesh fine enough? Under resolved waves will numerically dissipate quickly as they propagate though your domain. Make sure you are using higher order discretization schemes and fine meshes to accurately propagate waves. 

Viewing 1 reply thread
  • You must be logged in to reply to this topic.