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#1 |
Member
RacMat
Join Date: Jan 2013
Posts: 78
Rep Power: 13 ![]() |
Hi,
I have been running an unsteady simulation(FLUENT) of an axial fan. It has inlet guide vanes(IGV) and a Rotor and Outlet guide vanes(OGV). I would like to predict the tonal noise generated by the rotor. I tried using the FWH acoustic module but it only gives me a broadband spectrum and i can see the peak that is supposed to exist at he blade pass frequency. I experimented with the sources a little, first choosing the IGV and Rotor as the sources but that also produced a broadband spectrum. Only selecting the rotor blade and hub also gives me the same kind of spectrum. Could you please tell me how to get the tonal noise spectrum? Thanks! |
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Tags |
acoustics, axial fan, tonal noise |
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