西南石油大学学报(自然科学版)

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Numerical Simulation and Verification of Particle Impact Erosion Within Electric Submersible Pump

Wang Zunce, Mei Sijie, Chen Si, LÜ Fengxia, Yan Yuejuan   

  1. College of Mechanical Science and Engineering,Northeast Petroleum University,Daqing,Heilongjiang 163318,China
  • Online:2014-08-01 Published:2014-08-01

Abstract:

Based on RNG k − e turbulence model and discrete phase model,and to realize the numerical simulation for the impact erosion in the electrical submersible pump impeller,we studied the impact erosion process with CFD software. Through the impact erosion analysis of the electrical submersible pump impeller according to the different particle sizes and impeller speed,we obtained the law and mechanism of the impact erosion. The results show that the main position of erosion is the center of the concave leaf blade. The impact erosion will be worse with the increasing in the sand particle size and increasing impeller speed. 0.07 mm is the critical diameter of the erosion′s intensify. The numerical simulation result was verified by a comparison test,which proves that CFD is applicable to the prediction of the particle impact erosion within electric submersible sump.

Key words: electric submersible pump, erosion, discrete phase model, CFD, numerical simulation