A numerical study on the influence of gas-liquid two phase flow on the rotary pump performances

Miao, T C; Liu, Y Y; Zhao, Feng; Wang, L Q

doi:10.1088/1757-899x/52/6/062007

Cited by 1 publication

(2 citation statements)

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“…The gas pocket was observed to accumulate the closer to the exit the higher the liquid flow rate at identical IGVF. Miao et al 9 also used the VOF model to simulate the gas-liquid two-phase flow in a rotary pump system under different gas fractions and studied the flow mechanism when the rotary pump delivers a gas-containing medium. Mu¨ller et al 10 used a heterogeneous multiphase flow model to predict the gas-liquid two-phase flow inside a centrifugal pump and the model can better predict the pump performance when IGVF < 3%.…”

Section: Introductionmentioning

confidence: 99%

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Influence of air–water two-phase flow on the performance of a high-speed inducer

Cui

Cai

2020

Proceedings of the Institution of Mechanical Engineers, Part E:

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This study is to reveal the influence of incoming flow containing air on the internal flow and performance of a high-speed inducer. Numerical calculations were performed herein under different air volume fraction conditions based on the shear-stress transport turbulence model and the Eulerian–Eulerian heterogeneous flow model. The external characteristic, cavitation performance and visualization experiment were conducted under the air–water two-phase condition. As a result, the effect of incoming flow containing air under small flow rate condition on the decline of the inducer head was larger than that under large flow rate condition. The proper air volume fraction was beneficial to the improvement of the inducer cavitation performance. As the air volume fraction increased, the pressure gradients in the axial and radial directions of the inducer gradually reduced and the supercharging performance of the inducer also worsened. The flow near the hub in the flow channel became messy, and the turbulence energy increased. The air mainly concentrated in the leading edge rim and the low blade height region near the hub in the flow channel. The air expanded in the circumferential, radial and axial direction as the air volume fraction increased.

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Section: Introductionmentioning

confidence: 99%

“…Miao et al. 9 also used the VOF model to simulate the gas–liquid two-phase flow in a rotary pump system under different gas fractions and studied the flow mechanism when the rotary pump delivers a gas-containing medium. Müller et al.…”

Section: Introductionmentioning

confidence: 99%

Influence of air–water two-phase flow on the performance of a high-speed inducer

Cui

Cai

2020

Proceedings of the Institution of Mechanical Engineers, Part E:

View full text Add to dashboard Cite

show abstract

A numerical study on the influence of gas-liquid two phase flow on the rotary pump performances

Cited by 1 publication

References 2 publications

Influence of air–water two-phase flow on the performance of a high-speed inducer

Influence of air–water two-phase flow on the performance of a high-speed inducer

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