Evaluation of Wave Characteristics in Annular Flow in Horizontal Pipes

Osokogwu Uche

doi:doi:10.11648/j.ogce.20200801.11

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Evaluation of Wave Characteristics in Annular Flow in Horizontal Pipes

Osokogwu Uche

Published in International Journal of Oil, Gas and Coal Engineering (Volume 8, Issue 1)

Received: 9 November 2019 Accepted: 2 December 2019 Published: 10 January 2020

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Abstract

Annular flow experiments in horizontal flow in pipes were conducted with emphasis on wave characteristics (wave velocity, wave frequency) and liquid film thickness. The experiments were conducted using water/air in a 0.0504m pipe diameter with a total flow loop length of 28.68m. Liquid film thickness in all the flow matrix in this study, were observed to be decreasing with increase in gas velocity while increasing with increase in liquid velocity. The decreasing tendency with superficial gas velocity was because of liquid entrainments which were accounted. Pan and Hanratty correlation for liquid entrainment was chosen because it gave the most realistic results among other correlations from the experimental data. Wave velocity and wave frequency were presented to be increasing with increase in superficial gas velocity in annular flow. For wave frequency, it was observed that both superficial liquid and gas velocities have great impact on it. In annular flow in horizontal pipe, it was also observed that the lower the superficial liquid velocity, the lower the amplitude and the higher the wave frequency. This indicates that at low liquid velocity, more ripple waves occurred and at this time more energy were dissipated which resulted to the high frequency observed in this study. However, several correlations where compared with the obtained wave frequency in this study, but [2] preferably matched better as the superficial liquid velocity increases from 0.0903m/s to 0.1851m/s.

Published in	International Journal of Oil, Gas and Coal Engineering (Volume 8, Issue 1)
DOI	10.11648/j.ogce.20200801.11
Page(s)	1-9
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2020. Published by Science Publishing Group

Keywords

Annular Flow, Horizontal Pipe, Wave Velocity, Frequency, Film Thickness

References

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APA Style

Osokogwu Uche. (2020). Evaluation of Wave Characteristics in Annular Flow in Horizontal Pipes. International Journal of Oil, Gas and Coal Engineering, 8(1), 1-9. https://doi.org/10.11648/j.ogce.20200801.11

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ACS Style

Osokogwu Uche. Evaluation of Wave Characteristics in Annular Flow in Horizontal Pipes. Int. J. Oil Gas Coal Eng. 2020, 8(1), 1-9. doi: 10.11648/j.ogce.20200801.11

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AMA Style

Osokogwu Uche. Evaluation of Wave Characteristics in Annular Flow in Horizontal Pipes. Int J Oil Gas Coal Eng. 2020;8(1):1-9. doi: 10.11648/j.ogce.20200801.11

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@article{10.11648/j.ogce.20200801.11,
  author = {Osokogwu Uche},
  title = {Evaluation of Wave Characteristics in Annular Flow in Horizontal Pipes},
  journal = {International Journal of Oil, Gas and Coal Engineering},
  volume = {8},
  number = {1},
  pages = {1-9},
  doi = {10.11648/j.ogce.20200801.11},
  url = {https://doi.org/10.11648/j.ogce.20200801.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ogce.20200801.11},
  abstract = {Annular flow experiments in horizontal flow in pipes were conducted with emphasis on wave characteristics (wave velocity, wave frequency) and liquid film thickness. The experiments were conducted using water/air in a 0.0504m pipe diameter with a total flow loop length of 28.68m. Liquid film thickness in all the flow matrix in this study, were observed to be decreasing with increase in gas velocity while increasing with increase in liquid velocity. The decreasing tendency with superficial gas velocity was because of liquid entrainments which were accounted. Pan and Hanratty correlation for liquid entrainment was chosen because it gave the most realistic results among other correlations from the experimental data. Wave velocity and wave frequency were presented to be increasing with increase in superficial gas velocity in annular flow. For wave frequency, it was observed that both superficial liquid and gas velocities have great impact on it. In annular flow in horizontal pipe, it was also observed that the lower the superficial liquid velocity, the lower the amplitude and the higher the wave frequency. This indicates that at low liquid velocity, more ripple waves occurred and at this time more energy were dissipated which resulted to the high frequency observed in this study. However, several correlations where compared with the obtained wave frequency in this study, but [2] preferably matched better as the superficial liquid velocity increases from 0.0903m/s to 0.1851m/s.},
 year = {2020}
}

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TY  - JOUR
T1  - Evaluation of Wave Characteristics in Annular Flow in Horizontal Pipes
AU  - Osokogwu Uche
Y1  - 2020/01/10
PY  - 2020
N1  - https://doi.org/10.11648/j.ogce.20200801.11
DO  - 10.11648/j.ogce.20200801.11
T2  - International Journal of Oil, Gas and Coal Engineering
JF  - International Journal of Oil, Gas and Coal Engineering
JO  - International Journal of Oil, Gas and Coal Engineering
SP  - 1
EP  - 9
PB  - Science Publishing Group
SN  - 2376-7677
UR  - https://doi.org/10.11648/j.ogce.20200801.11
AB  - Annular flow experiments in horizontal flow in pipes were conducted with emphasis on wave characteristics (wave velocity, wave frequency) and liquid film thickness. The experiments were conducted using water/air in a 0.0504m pipe diameter with a total flow loop length of 28.68m. Liquid film thickness in all the flow matrix in this study, were observed to be decreasing with increase in gas velocity while increasing with increase in liquid velocity. The decreasing tendency with superficial gas velocity was because of liquid entrainments which were accounted. Pan and Hanratty correlation for liquid entrainment was chosen because it gave the most realistic results among other correlations from the experimental data. Wave velocity and wave frequency were presented to be increasing with increase in superficial gas velocity in annular flow. For wave frequency, it was observed that both superficial liquid and gas velocities have great impact on it. In annular flow in horizontal pipe, it was also observed that the lower the superficial liquid velocity, the lower the amplitude and the higher the wave frequency. This indicates that at low liquid velocity, more ripple waves occurred and at this time more energy were dissipated which resulted to the high frequency observed in this study. However, several correlations where compared with the obtained wave frequency in this study, but [2] preferably matched better as the superficial liquid velocity increases from 0.0903m/s to 0.1851m/s.
VL  - 8
IS  - 1
ER  -

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Author Information

Osokogwu Uche

School of Energy, Environment and Agrifood, Cranfield University, Bedfordshire, UK

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APA Style

Osokogwu Uche. (2020). Evaluation of Wave Characteristics in Annular Flow in Horizontal Pipes. International Journal of Oil, Gas and Coal Engineering, 8(1), 1-9. https://doi.org/10.11648/j.ogce.20200801.11

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ACS Style

Osokogwu Uche. Evaluation of Wave Characteristics in Annular Flow in Horizontal Pipes. Int. J. Oil Gas Coal Eng. 2020, 8(1), 1-9. doi: 10.11648/j.ogce.20200801.11

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AMA Style

Osokogwu Uche. Evaluation of Wave Characteristics in Annular Flow in Horizontal Pipes. Int J Oil Gas Coal Eng. 2020;8(1):1-9. doi: 10.11648/j.ogce.20200801.11

Copy | Download

@article{10.11648/j.ogce.20200801.11,
  author = {Osokogwu Uche},
  title = {Evaluation of Wave Characteristics in Annular Flow in Horizontal Pipes},
  journal = {International Journal of Oil, Gas and Coal Engineering},
  volume = {8},
  number = {1},
  pages = {1-9},
  doi = {10.11648/j.ogce.20200801.11},
  url = {https://doi.org/10.11648/j.ogce.20200801.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ogce.20200801.11},
  abstract = {Annular flow experiments in horizontal flow in pipes were conducted with emphasis on wave characteristics (wave velocity, wave frequency) and liquid film thickness. The experiments were conducted using water/air in a 0.0504m pipe diameter with a total flow loop length of 28.68m. Liquid film thickness in all the flow matrix in this study, were observed to be decreasing with increase in gas velocity while increasing with increase in liquid velocity. The decreasing tendency with superficial gas velocity was because of liquid entrainments which were accounted. Pan and Hanratty correlation for liquid entrainment was chosen because it gave the most realistic results among other correlations from the experimental data. Wave velocity and wave frequency were presented to be increasing with increase in superficial gas velocity in annular flow. For wave frequency, it was observed that both superficial liquid and gas velocities have great impact on it. In annular flow in horizontal pipe, it was also observed that the lower the superficial liquid velocity, the lower the amplitude and the higher the wave frequency. This indicates that at low liquid velocity, more ripple waves occurred and at this time more energy were dissipated which resulted to the high frequency observed in this study. However, several correlations where compared with the obtained wave frequency in this study, but [2] preferably matched better as the superficial liquid velocity increases from 0.0903m/s to 0.1851m/s.},
 year = {2020}
}

Copy | Download

TY  - JOUR
T1  - Evaluation of Wave Characteristics in Annular Flow in Horizontal Pipes
AU  - Osokogwu Uche
Y1  - 2020/01/10
PY  - 2020
N1  - https://doi.org/10.11648/j.ogce.20200801.11
DO  - 10.11648/j.ogce.20200801.11
T2  - International Journal of Oil, Gas and Coal Engineering
JF  - International Journal of Oil, Gas and Coal Engineering
JO  - International Journal of Oil, Gas and Coal Engineering
SP  - 1
EP  - 9
PB  - Science Publishing Group
SN  - 2376-7677
UR  - https://doi.org/10.11648/j.ogce.20200801.11
AB  - Annular flow experiments in horizontal flow in pipes were conducted with emphasis on wave characteristics (wave velocity, wave frequency) and liquid film thickness. The experiments were conducted using water/air in a 0.0504m pipe diameter with a total flow loop length of 28.68m. Liquid film thickness in all the flow matrix in this study, were observed to be decreasing with increase in gas velocity while increasing with increase in liquid velocity. The decreasing tendency with superficial gas velocity was because of liquid entrainments which were accounted. Pan and Hanratty correlation for liquid entrainment was chosen because it gave the most realistic results among other correlations from the experimental data. Wave velocity and wave frequency were presented to be increasing with increase in superficial gas velocity in annular flow. For wave frequency, it was observed that both superficial liquid and gas velocities have great impact on it. In annular flow in horizontal pipe, it was also observed that the lower the superficial liquid velocity, the lower the amplitude and the higher the wave frequency. This indicates that at low liquid velocity, more ripple waves occurred and at this time more energy were dissipated which resulted to the high frequency observed in this study. However, several correlations where compared with the obtained wave frequency in this study, but [2] preferably matched better as the superficial liquid velocity increases from 0.0903m/s to 0.1851m/s.
VL  - 8
IS  - 1
ER  -

Copy | Download