심정용 해수펌프 개발을 위한 수치해석 연구
Numerical Study for Development of Submerged Seawater Lift Pump
1
조회
0
다운로드
5
인용
0
참고문헌
키워드
초록
Seawater lift pump systems are responsible for maintaining open canal levels to provide the suction flow of circulating water pumps at the set point. The objective of this paper is to design a 2-stage mixed flow pump (for seawater lifting), investigate the new impeller modeling method, and performance improvements of the impeller by using a commercial CFD code. The rotating speed of the impeller is 1,750 rpm with a flow rate of 2,700 m3/h. A finite volume method with a structured mesh and realized k-ε turbulent model is used to guarantee a more accurate prediction of turbulent flow in the pump impeller. The performance variables such as the static head, brake horsepower, and efficiency of the mixed flow pump are compared based on changes in the impeller blade shape.
Abstract
Seawater lift pump systems are responsible for maintaining open canal levels to provide the suction flow of circulating water pumps at the set point. The objective of this paper is to design a 2-stage mixed flow pump (for seawater lifting), investigate the new impeller modeling method, and performance improvements of the impeller by using a commercial CFD code. The rotating speed of the impeller is 1,750 rpm with a flow rate of 2,700 m3/h. A finite volume method with a structured mesh and realized k-ε turbulent model is used to guarantee a more accurate prediction of turbulent flow in the pump impeller. The performance variables such as the static head, brake horsepower, and efficiency of the mixed flow pump are compared based on changes in the impeller blade shape.
참고문헌 (8)
- Asuaje, M, "Inverse Design Method for Centrifugal Impellers and Comparison with Numerical Simulation Tool", International Journal of Computational Fluid Dynamics, 18(2), pp.101~107 (2004)
- Choi, Y.D, "Performance Improvement of a Centrifugal Pump by Semi-closed Impeller and J-Groove", Proceeding of the Fluid Machinery, pp.293~296 (2007)
- Baun, D.O, "Effects of Volute Design and Number of Impeller Blades on Lateral Impeller Forces and Hydraulic Performance", International Journal of Rotating Machinery, 9(2), pp.145~152 (2003)
- Ha, P.S, "Performance Improvement of Francis with Low Efficiency by Inverse Design and CFD", Spring Proceeding of the KSME Fluid Engineering Section, pp.106~111 (2010)
- Kim, S, "Blade Shape Design of Mixed-flow Pump Impellers and Diffusers In a Fixed Meridional Goemetry", Summer Proceeding of the SAREK, pp.1203~1208 (2009)
- Lee, K.Y, "Design of Impeller and Diffuser for Mixed Flow Pump with Inverse Design Method", Summer Proceeding of the SAREK, pp.1322~1325 (2008)
- Manivannan,A, "Computational fluid dynamics analysis of a mixed flow pump impeller", International Journal of Engineering, Science and Technology, 2(6), pp.200~206 (2010)
- Oh, J.S, "Impeller Redesign of Multi-stage Centrifugal Pumps", Proceeding of the Fluid Machinery, pp.177~184 (2001)