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| Numerical calculation of particle erosion within electric submersible pump based on discrete phase model |
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CHEN Si1, WANG Zunce1, L Fengxia1, HE Jingang2
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(1.College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, China;2.College of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China)
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| Abstract: |
| Based on discrete phase model and elastic-plastic indentation fracture theory, erosion in the electrical submersible pump impeller was numerically simulated. The effect of particle size and impeller speed on the erosion of the electrical submersible pump impeller was predicted by a particle erosion model. In order to verify the results of numerical simulation, the erosion in an electrical submersible pump in operation was measured by the coordinate measuring machine. The results show that the critical diameter with the highest erosion rate is 0.06-0.08 mm. The erosion mainly occurs in the center of the concave surface of blade. With the increase of particle size and impeller speed, the erosion area will extend. The numerical simulation results agree well with the testing results. |
| Key words: discrete phase model(DPM) elastic-plastic indentation fracture theory erosion electric submersible pump numerical simulation |
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