Turbulence Numerical Simulation and Particle Track Analysis of Slurry Pump Impeller

Abstract:

In order to improve the pump wear performance and optimize pump design, the Euler-Lagrange approach is chosen to simulate the flow in the impeller. The fluid phase is treated as a continuum by solving the N-S equations, while the dispersed phase is solved by using Lagrange Method through the calculated flow field. The results show that the reflex appears in the blade inlet of pressure sides in high flow conditions, but appears in the blade inlet of suction sides in low flow conditions, which possibly induce the cavitation erosion. In low flow conditions, reflex and eddies appear in the blade outlet of both the pressure sides and the suction sides, and the reflex areas even extend to the middle of blades. In the range of simulated conditions, the suction sides don’t collide with particles. The pressure sides collide with particles in the form of continuous impact in low flow conditions but scratch in high flow conditions.

• Periodical: Advanced Materials Research (Volumes 655-657)
• Pages: 336-339
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.655-657.336
• Online since: January 2013
• Authors: Heng Zhang, Yan Chao Yin
• Keywords: Flow Field Calculation, Impeller, Particle Track, Slurry Pump, Work Condition

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