Please guide me for obtaining the power spectrum density in CFX or Fluent.

Thanks

You cannot do a Power Spectral Density analysis using CFX directly.

But you can extract time data of required variables, and use a code like Matlab to get PSD graphs.

FLUENT though can be be used for FFT analysis directly from transient results.

Regards

Dear Omer Thank you for your guide. If it is possible please guide me for obtaining this term in details. for example whate variable and what position of the bed must be used for this purpose. My e-mail address is hosseini49@gmail.com, please give me your e-mail address for more information.

Thanks