Gas/liquid flow behaviours in a downward section of large diameter vertical serpentine pipes

Almabrok A. Almabrok, Aliyu M. Aliyu, Liyun Lao, Hoi Yeung

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

An experimental study on air/water flow behaviours in a 101.6 mm i.d. vertical pipe with a serpentine configuration is presented. The experiments are conducted for superficial gas and liquid velocities ranging from 0.15 to 30 m/s and 0.07 to 1.5 m/s, respectively. The bend effects on the flow behaviours are significantly reduced when the flow reaches an axial distance of 30 pipe diameters or more from the upstream bend. The mean film thickness data from this study has been used to compare with the predicted data using several falling film correlations and theoretical models. It was observed that the large pipe data exhibits different tendencies and this manifests in the difference in slope when the dimensionless film thickness is plotted as a power law function of the liquid film Reynolds number.

Original languageEnglish
Pages (from-to)25-43
Number of pages19
JournalInternational Journal of Multiphase Flow
Volume78
Early online date9 Oct 2015
DOIs
Publication statusPublished - 1 Jan 2016
Externally publishedYes

Fingerprint

liquid flow
Gases
Pipe
Film thickness
Liquids
film thickness
gases
water flow
Liquid films
liquids
falling
upstream
Reynolds number
tendencies
slopes
Water
air
Air
configurations
Experiments

Cite this

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title = "Gas/liquid flow behaviours in a downward section of large diameter vertical serpentine pipes",
abstract = "An experimental study on air/water flow behaviours in a 101.6 mm i.d. vertical pipe with a serpentine configuration is presented. The experiments are conducted for superficial gas and liquid velocities ranging from 0.15 to 30 m/s and 0.07 to 1.5 m/s, respectively. The bend effects on the flow behaviours are significantly reduced when the flow reaches an axial distance of 30 pipe diameters or more from the upstream bend. The mean film thickness data from this study has been used to compare with the predicted data using several falling film correlations and theoretical models. It was observed that the large pipe data exhibits different tendencies and this manifests in the difference in slope when the dimensionless film thickness is plotted as a power law function of the liquid film Reynolds number.",
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Gas/liquid flow behaviours in a downward section of large diameter vertical serpentine pipes. / Almabrok, Almabrok A.; Aliyu, Aliyu M.; Lao, Liyun; Yeung, Hoi.

In: International Journal of Multiphase Flow, Vol. 78, 01.01.2016, p. 25-43.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Gas/liquid flow behaviours in a downward section of large diameter vertical serpentine pipes

AU - Almabrok, Almabrok A.

AU - Aliyu, Aliyu M.

AU - Lao, Liyun

AU - Yeung, Hoi

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