Study on the Relationship between Impeller Design Parameters and Performance of Partial Emission Pump Based on CFD Technology

Abstract:

In this paper, the relationship between impeller design parameters and performance of a partial emission pump is studied by numerical simulation. Nine straight radial impellers with different blade ratio γ (short blade length to long blade length ratio, γ=50%, 70% and 90%) and different front inclination angle β (β=8, 12 and 16 degree) were designed, while the rest geometric parameters of the pump were kept unchanged. All the numerical simulations were carried out by using the commercial software FLUENT V12.1 based on the Realizable k-ε turbulent model. The results showed that with increasing of front inclination angle, the capacity-head curve drops, the maximum head all appears at blade ratio γ=90%. The static pressure increases with increasing radius. A separation bubble can be observed at the outlet of diffuser tube.

• Periodical: Applied Mechanics and Materials (Volume 532)
• Pages: 447-451
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.532.447
• Online since: February 2014
• Authors: Li Sheng Zhang*, Jin Jiang, Zhi Huai Xiao, Yan Hui Li
• Keywords: CFD, Characteristic Curve, Impeller Design Parameters, Partial Emission Pump

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