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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.9 No.2
- 발행연도
- 2016.6
- 수록면
- 119 - 128 (10page)
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초록· 키워드
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This work presents the numerical investigation of an unsteady cavitating flow around a balancing drum of a multistage pump. The main attention is focused on the cavitation phenomena, which occur in the rear part of the drum clearance, cause the erosion of the drum material and influence the pressure losses and the flow rate through the clearance. The one-way coupling of the URANS equations and the full Rayleigh-Plesset equation is employed to analyse the flow field as well as the dynamics of cavitating bubbles. The numerical simulations show that the erosion processes are highly influenced by shaft vibrations, namely by periodic deformations of the annular clearance in time. The calculated results are verified by erosion tests on a real pump.
목차
Abstract
1. Introduction
2. Cavitation Erosion Model
3. Cavitating Flow around Balancing Drum: Problem Definition
4. Results and Discussion
5. Conclusion
References
참고문헌 (16)
참고문헌 신청
[학술대회논문] - Berntsen, G. / 2001 / Cavitation Induced Dynamics in Hydraulic Machinery / Proc. 10th IAHR WG Meeting on the Behaviour of Hydraulic Machinery under Steady Oscillatory Conditions : 1 ~ 8
[학위논문] - Bouziad, Y. A. / 2005 / Physical Modelling of Leading Edge Cavitation: Computational Methodologies and Application to Hydraulic Machinery / Ecole Polytechnique Federale de Lausane
[학술대회논문] - Tsujimoto, Y / 2005 / Tip Leakage and Backflow Vortex Cavitation / Proc. CISM Advanced School on Fluid Dynamics of Cavitation and Cavitating Turbopumps
[학술지(정기간행물)] - Yamamoto, K. / 2009 / “Backflow Vortex Cavitation and Its Effects on Cavitation Instabilities / Int. Journal of Fluid Machinery and Systems 2 (1) : 40 ~ 54
[학술지(정기간행물)] - Oh, H. W. / 2010 / Design Parameter to Improve the Suction Performance of Mixed-Flow Pump Impeller / Proc. IMechE, Part A: Journal of Power and Energy 224 (6) : 881 ~ 887
[학위논문] - Bouziad, Y. A. / 2005 / Physical Modelling of Leading Edge Cavitation: Computational Methodologies and Application to Hydraulic Machinery / Ecole Polytechnique Federale de Lausane
[학술대회논문] - Tsujimoto, Y / 2005 / Tip Leakage and Backflow Vortex Cavitation / Proc. CISM Advanced School on Fluid Dynamics of Cavitation and Cavitating Turbopumps
[학술지(정기간행물)] - Yamamoto, K. / 2009 / “Backflow Vortex Cavitation and Its Effects on Cavitation Instabilities / Int. Journal of Fluid Machinery and Systems 2 (1) : 40 ~ 54
[학술지(정기간행물)] - Oh, H. W. / 2010 / Design Parameter to Improve the Suction Performance of Mixed-Flow Pump Impeller / Proc. IMechE, Part A: Journal of Power and Energy 224 (6) : 881 ~ 887
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UCI(KEPA) : I410-ECN-0101-2018-554-001894184