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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.12 No.1
- 발행연도
- 2019.3
- 수록면
- 64 - 70 (7page)
- DOI
- 10.5293/IJFMS.2019.12.1.064
이용수
초록· 키워드
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This paper presents detailed analyses on the steady and unsteady internal flow characteristics of a three-stage centrifugal pump under design and off-design conditions. A numerical analysis is conducted by solving three-dimensional steady and unsteady Reynolds-averaged Navier-Stokes equations with the shear stress transport (SST) turbulence model. The results of the steady and unsteady numerical analyses throughout the flow region are analyzed and compared with experimental data. A reattachment modification is used in the SST turbulence model to better capture the characteristics of flow separation due to boundary layer reattachment under the design and off-design conditions. The unsteady numerical results are in reasonable agreement with the experimental data, whereas they differ from the steady numerical results when it comes to the internal flow fields at each component stage. In particular, the time-averaged internal flow phenomena obtained from the unsteady analysis are close to the real field conditions of this pump at low flow rates. The hydraulic performances with and without the reattachment modification are similar throughout the flow region, whereas the respective flow characteristics in each impeller component are considerably different, particularly at low flow rates.
목차
Abstract
1. Introduction
2. Steady and Unsteady Numerical Analysis
3. Results and Discussion
4. Conclusions
References
참고문헌 (8)
참고문헌 신청
Yamashita, T. / 2015 / Measurements of axial and radial thrust forces working on a three-stages centrifugal pump rotor / ASME-JSME-KSME 2015 Joint Fluids Engineering Conference
Furukawa, D. / 2015 / Axial and radial thrust characteristics of a three-stage centrifugal pump with axial offset of rotors / The 13th Asian International Conference on Fluid Machinery
Watanabe, H. / 2015 / CFD analysis of axial thrust in three stages centrifugal pump at design and partload conditions / ASME-JSME-KSME 2015 Joint Fluids Engineering Conference
Kim, J. H. / 2018 / Detailed flow characteristic analysis of a three-stage centrifugal pump at design and off-design conditions / 29th IAHR Symposium on Hydraulic Machinery and Systems
Menter, F. R. / 1994 / Two-equation eddy-viscosity turbulence models for engineering application / AIAA Journal 32(8):1598~1605
Furukawa, D. / 2015 / Axial and radial thrust characteristics of a three-stage centrifugal pump with axial offset of rotors / The 13th Asian International Conference on Fluid Machinery
Watanabe, H. / 2015 / CFD analysis of axial thrust in three stages centrifugal pump at design and partload conditions / ASME-JSME-KSME 2015 Joint Fluids Engineering Conference
Kim, J. H. / 2018 / Detailed flow characteristic analysis of a three-stage centrifugal pump at design and off-design conditions / 29th IAHR Symposium on Hydraulic Machinery and Systems
Menter, F. R. / 1994 / Two-equation eddy-viscosity turbulence models for engineering application / AIAA Journal 32(8):1598~1605
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UCI(KEPA) : I410-ECN-0101-2019-554-000988036