Several applications were carried out in order to validate the method presented in Part I. In Part II, two examples of these applications are presented; one relating to the aeroacoustics of the axial fans and the other one to the interaction impeller-volute tongue in a centrifugal pump. The test benches used to study the behavior of these machines are presented. The study of the fan was capable of quantifying the discrete noise associated with the fluctuations in pressure linked to the potential flow. The analysis of the centrifugal pump permitted comparing the theoretical pressure fluctuations with experimental ones measured by various unsteady pressure sensors placed on the impeller shroud and in the volute. The qualitative and quantitative results obtained confirm the interest and the range of the developed algorithm.

Issue Section:
Technical Papers
Keywords:
rotors, stators, pumps, compressors, aeroacoustics, pressure, fluctuations
Topics:
Flow (Dynamics), Fluctuations (Physics), Impellers, Pressure, Centrifugal pumps, Pumps, Rotors, Stators, Pressure sensors, Aerodynamic noise, Compression, Fans, Machinery, Blades
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Copyright © 2001
 by ASME
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