Near-field noise simulation
 

Dear All,

I am new to OpenFOAM and would like to study aero acoustic simulation using OpenFOAM. When I went through some documents, I got to know about the following;
1) near-field noise simulation : CFD output (pressure fluctuations) is converted to sound pressure.
2) far-field noise simulation : CFD output(pressure fluctuations) is given as input to acoustic analogies like FW-H, Curle etc.

If the sound source and observer are located close to each other,
1) can we use near-field noise simulation instead of far-field noise simulation?
2) Which method is expected to give better results? near-field or far-field?

NOTE: I am using propeller example(pimpleDyMFoam) available in OpenFOAM for my study.

Kindly provide your inputs and suggestions.

Thanks,
Danya

Have u done this work im interested in this work too. Could u provide me a case files please.
Thankss