원심압축기의 링 그루브 효과에 관한 수치해석적 연구Numerical Investigation of Ring Groove Effect in a Centrifugal Compressor
- Other Titles
- Numerical Investigation of Ring Groove Effect in a Centrifugal Compressor
- Authors
- 박치용; 최영석; 이경용; 윤준용
- Issue Date
- Apr-2011
- Publisher
- 한국유체기계학회
- Keywords
- Centrifugal Compressor(원심형 압축기); Ring Groove(링 그루브); Surge Margin(서지마진); CFD(전산유체역학)
- Citation
- 한국유체기계학회 논문집, v.14, no.2, pp.11 - 16
- Indexed
- KCI
- Journal Title
- 한국유체기계학회 논문집
- Volume
- 14
- Number
- 2
- Start Page
- 11
- End Page
- 16
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/38978
- DOI
- 10.5293/KFMA.2011.14.2.011
- ISSN
- 2287-9706
- Abstract
- This paper presents a numerical study of casing treatments on a centrifugal compressor stage to improve stability and the surge margin. High efficiency, a high pressure ratio, and a wide operating range are required for a high performance centrifugal compressor. In the present study, a ring groove arrangement was applied to the transonic centrifugal compressor. According to the numerical analysis using a commercial code ANSYS-CFX, the unstable phenomena limiting the range of the centrifugal compressors were compared with and without a ring groove. Although the ring groove decreased the efficiency, but increased the operating range by suppressing a flow separation at the leading-edge of the impeller especially near shroud part. Newly designed ring groove arrangement improved the compressor performance and increased the operating range of the compressor.
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