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Aeroacoustic/Hydroacoustic Simulation in STAR CCM

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Old   March 30, 2018, 11:00
Cool Aeroacoustic/Hydroacoustic Simulation in STAR CCM
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Kashan
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Hello all,

I have tried to solve marine propeller noise with Star CCM. I would like to ask you that, the signal from FW-H is not a sinusodial. It is always random and caotic. To get the true Blade Passage Frequencies, The signal must be harmonic especially in propeller rotation axis?

I have done lots of think, mesh refinements, timesteps, inner iteration, turbulence model. However, I couldn't fix this.

Does anybody study aeroacoustic or hydroacoustic problems such as fan noise, propeller noise?

Have a nice day.
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