The Influence of the Number of Impeller’s Blade on the Performance of Multistage Centrifugal Pump

Abstract:

Abstract: In order to understand the relationship between the number of blade and the performance of the self-balance multistage centrifugal pump’s first stage impeller internal flow characteristics, Reynolds Navier-Stokes equation and κ~ε turbulence model are used for numerical simulation. The objects of numerical simulation are five self-balance multistage centrifugal pump’s first stage impellers, the blade number of them is 4，5，6，7，8.Under the rated flow ,the numerical simulation obtain five kind of impeller inner flow field distribution , Through the comparative analysis ,when the number of blade is 4,8,the flow of the impeller’s inner and pressure distribution become chaos ;And, the number of blade is 5,6,7, With the increase of blade number, the impeller internal flow are smoother，the head and efficiency are enhanced correspondingly.

• Periodical: Advanced Materials Research (Volumes 781-784)
• Pages: 2851-2856
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.781-784.2851
• Online since: September 2013
• Authors: Ling Yi*, Zhi Peng Li, Yan Hui Chen, Shun Jun Hong
• Keywords: Internal Flow Field, Multistage Centrifugal Pump, Number of Blade, Numerical Simulation, κ~ε Turbulence Model

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