Aeroacoustics - cooling fan system
 

Hello,

I am performing an aeroacoustic simulation on an automotive fan attached to its cooler. The simulation is made on a commercial software with a Reynolds Stress Model.

My problem is that I don´t really know how to simulate correctly the influence of the cooler on the noise. For classical CFD, a porosity is used but for acoustics I think this won´t be judicious.

I´m studying the influence of the stator of the fan on the unsteady noise but I think the results won´t be good with a porosity instead of the fine geometry of the cooler.

Did someone already performed such simulation ? suggestions to simulate acoustics on automobile coolers ?