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-   -   PRESSURE FLUCTUATION for Aerodynamic Noise??? (http://www.cfd-online.com/Forums/cfx/125296-pressure-fluctuation-aerodynamic-noise.html)

fender26 October 23, 2013 02:58

PRESSURE FLUCTUATION for Aerodynamic Noise???
 
Hi,
I am trying to simulate aerodynamic noise generating from flow around a cavity. I have a mesh of size 16 million and I am using DES. I read in the Ansys reference guide that to calculate SPL i need Pressure fluctuation in the field. The problem lies here, can anyone please tell me how can I get pressure fluctuations. Do I have to define it in CFX pre, I tried finding it in Extra variable list, but could not find it :confused:.

Thanks

ghorrocks October 23, 2013 08:08

The documentation describes how to do this - CFX Modelling guide/Aerodynamic Noise Analysis/Noise Strength Estimation in CFX, and then under the type of noise source you have.


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