Rotating Instability of a Centrifugal Compressor with 2-Dimensional Impeller
- Rotating Instability of a Centrifugal Compressor with 2-Dimensional Impeller
- 강경준; 신유환; 김광호
- Centrifugal Compressor; Flow Instability; PIV; Reverse Flow; Flow Visualization; 원심압축기; 유동 불안정성; 입자영상속도계; 역류; 유동 가시화
- Issue Date
- The 10th AICFM
- This study investigated on details of flow characteristics of a compressor with 2-dimensional impeller at various flow rates.
Experiment for a low speed compressor model in a water reservoir was performed to analyze the flow field in the vaneless diffuser
and volute casing, which was done by PIV measurement. It was also focused on the periodic flow patterns occurring at low flow
rate near unstable operating region of the compressor. At low flow rate condition, the flow visualization clearly shows that the
flow energy from impeller is highly accumulated at the compressor exit by the blockage effect of a flow damper and consequently
the reverse flow occurs in the diffuser.
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- KIST Publication > Conference Paper
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