International Journal of Petroleum Science and Technology

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The Numerical Simulation Study of the Inner Flow Field of the Screw Pump


Affiliations
1 College of Earth Sciences, Northeast Petroleum University, Daqing, Heilongjiang, 163318., China
2 Shenyang Engineering Department of Liao He Oilfield, ShenYang, Liaoning, 110316., China
3 College of Petroleum Engineering, Northeast Petroleum University, Daqing, Heilongjiang, 163318., China
     

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In SolidWorks software, established stator and rotor model of screw pump, and succeeded in assembly. Established the dynamic grid of the description of the rotor movement by using the function of UDF provided by Fluent software; builded the dynamic numerical simulation of internal unsteady flow of screw pump by using Fluent software solver, and obtained velocity distribution, pressure distribution and stress field of the flow field. Analized the effect of the fluid viscosity, rotor speed and screw pump eccentricity convection to the flow field. The results show that when the rotor leaves both ends of the stator, flow field in the pump always appears a very clear vortex; Viscosity affected only the value of velocity, pressure and stress, while it has little effect to the distribution laws. The speed of the rotor has a great influence to the velocity distribution, and the velocity of the fluid increases with rotor speed increases. In addition, the eccentricity of the PCP has a big influence on the flow field, and flow field parameters increases with the eccentricity increases, which indicates that the eccentricity has a great influence on the stability of the screw pump.

Keywords

Screw Pump, 3D Model, UDF, The Numerical Simulation
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  • Cao gang.Dynamics mechanism of screw pump and three dimensional numerical simulation technology research [D]. University of science and technology of China, 2009 (6).

  • Performance research and application of screw pump [D]. Northeast petroleum university, 2007 (5).

  • Ground drive screw pump well rod tube and pip ring spiral flow numerical simulation [J]. Journal of oil. 2007, 28(2).


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  • The Numerical Simulation Study of the Inner Flow Field of the Screw Pump

Abstract Views: 538  |  PDF Views: 0

Authors

Cuiju Feng
College of Earth Sciences, Northeast Petroleum University, Daqing, Heilongjiang, 163318., China
Feng Shi
Shenyang Engineering Department of Liao He Oilfield, ShenYang, Liaoning, 110316., China
Chunsheng Wang
College of Petroleum Engineering, Northeast Petroleum University, Daqing, Heilongjiang, 163318., China
Xiaohu Wang
College of Petroleum Engineering, Northeast Petroleum University, Daqing, Heilongjiang, 163318., China

Abstract


In SolidWorks software, established stator and rotor model of screw pump, and succeeded in assembly. Established the dynamic grid of the description of the rotor movement by using the function of UDF provided by Fluent software; builded the dynamic numerical simulation of internal unsteady flow of screw pump by using Fluent software solver, and obtained velocity distribution, pressure distribution and stress field of the flow field. Analized the effect of the fluid viscosity, rotor speed and screw pump eccentricity convection to the flow field. The results show that when the rotor leaves both ends of the stator, flow field in the pump always appears a very clear vortex; Viscosity affected only the value of velocity, pressure and stress, while it has little effect to the distribution laws. The speed of the rotor has a great influence to the velocity distribution, and the velocity of the fluid increases with rotor speed increases. In addition, the eccentricity of the PCP has a big influence on the flow field, and flow field parameters increases with the eccentricity increases, which indicates that the eccentricity has a great influence on the stability of the screw pump.

Keywords


Screw Pump, 3D Model, UDF, The Numerical Simulation

References