Potential Noise Source Identification in a Single Stage Rotor-Stator Compressor

Noise Generation Mechanisms

State legislation for domestic products has driven the need for noise reduction in low Reynolds number turbomachinery. The current study identifies the prevalent noise source type expected in the current design and potential aerodynamic candidates relating to this. A single stage rotor-stator research axial compressor was explored experimentally and numerically. A quantitative acoustic analysis was performed and a qualitative aerodynamic comparison completed to accompany it. The outcome demonstrated the potential aerodynamic flow features that could be related to the specific energy increase seen in the acoustic spectra.