대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)
- 제23권9호
- /
- Pages.1129-1138
- /
- 1999
- /
- 1226-4881(pISSN)
- /
- 2288-5324(eISSN)
DOI QR Code
원심형 임펠러에 대한 이구역 모델링
Two-Zone Modeling for Centrifugal Impellers
- 투고 : 1998.12.31
- 발행 : 1999.09.01
초록
This paper presents a systematic two-zone modeling for reliable performance prediction of centrifugal compressors. In order to improve the predictive capability, a modified jet slip factor is developed and new corrections for the wake flow deviation and mass fraction are suggested based on the comprehensive experimental data of the three Eckardt impellers. The proposed two-zone modeling is tested against nine sets of measured data of centrifugal compressors. The results are also compared with those obtained by the mean streamline analysis. It was found that the predictions by the present two-zone modeling agree fairly well with experimental data for a variety of centrifugal compressors over the wide operating conditions.
키워드