Electric Submersible Pump Performance and Numerical Modeling in Two- Phase Flow

2017 ◽  
Author(s):  
Risa Rutter ◽  
Zheng Ye ◽  
Ryan Lack
Keyword(s):  
Numerical Modeling ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Submersible Pump ◽  
Two Phase ◽  
Pump Performance ◽  
Electric Submersible Pump

scholarly journals Numerical Modeling of Turbulent Swirling Two-Phase Flow in a Centrifugal Classifier

2016 ◽  
Vol 110 ◽  
pp. 01070
Author(s):  
Alexander Shvab ◽  
Pavel Zyatikov ◽  
Marina Goyko
Keyword(s):  
Numerical Modeling ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase

Numerical Modeling of Two Phase Flow under Centrifugation

2012 ◽  
Vol 326-328 ◽  
pp. 221-226
Author(s):  
Jozef Kačur ◽  
Benny Malengier ◽  
Pavol Kišon
Keyword(s):  
Inverse Problem ◽  
Numerical Modeling ◽  
Numerical Experiments ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Saturated Sample ◽  
Dae Systems ◽  
Capillary Pressure Curves ◽  
Wetting Liquid

Numerical modeling of two-phase flow under centrifugation is presented in 1D.A new method is analysed to determine capillary-pressure curves. This method is based onmodeling the interface between the zone containing only wetting liquid and the zone containingwetting and non wetting liquids. This interface appears when into a fully saturated sample withwetting liquid we inject a non-wetting liquid. By means of this interface an efficient and correctnumerical approximation is created based upon the solution of ODE and DAE systems. Bothliquids are assumed to be immiscible and incompressible. This method is a good candidate tobe used in solution of inverse problem. Some numerical experiments are presented.

Performance and pressure distribution changes in a centrifugal pump under two-phase flow

1998 ◽  
Vol 212 (3) ◽  
pp. 165-171 ◽  
Author(s):  
E T Pak ◽  
J C Lee
Keyword(s):  
Pressure Gradient ◽  
Pressure Distribution ◽  
Centrifugal Pump ◽  
Void Fraction ◽  
Two Phase Flow ◽  
Positive Pressure ◽  
Phase Flow ◽  
Flow Conditions ◽  
Two Phase ◽  
Pump Performance

Pump performance characteristics change drastically under two-phase flow conditions from those of single-phase flow. This is due to a change in flow characteristics in the impeller. Owing to a positive pressure gradient the air bubble moves more slowly than the water in the impeller channel, but in the suction surface region of the impeller inlet, where a negative pressure gradient prevails, the bubbles move more quickly than the water. Thus, in the space just after this region the distributions of the void fraction obtained are considerably higher and uneven. The change in the pressure distribution owing to air admission is also particularly evident in the inlet region of the impeller. These changes bring about an alteration of the whole flow pattern in the impeller and also cause a drop in pump performance. The Reynolds-averaged Navier-Stokes equations for two-phase flow in a centrifugal pump impeller are solved using a finite volume method to obtain the pressure, velocities and void fraction respectively. Good agreement is achieved when the predicted results are compared with those measured experimentally within the range of bubbly flow conditions.

Sign in / Sign up

Export Citation Format

Share Document