A hybrid model for predicting gas entrainment in a small branch from a co-current flowing gas-liquid regime

Robert Bowden, Wael Saleh, Ibrahim Hassan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An analytical model was developed to predict the critical conditions at the onset of gas entrainment in a single downward oriented branch. The branch was installed on a horizontal square cross-sectional channel having a smooth stratified cocurrently flowing gas-liquid regime in the upstream inlet region. The branch flow was simulated as a three-dimensional pointsink while the downstream run flow was treated with a uniform velocity at the critical dip location. A boundary condition was imposed in the model whereby the flow distribution between the branch and run was obtained experimentally and digital imaging was used to quantify the critical dip location through the dip angle. Three constant dip angles were evaluated in the model and results showed the dip height to have good agreement with experiments between angles of 50 and 60 degrees. The predicted upstream height, however, did not match well with the experimentally determined height due to the omission of shear and inertial effects between the upstream location and critical dip.

Original languageEnglish
Title of host publicationASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010
Pages1363-1371
Number of pages9
Volume1
EditionPARTS A, B AND C
DOIs
Publication statusPublished - 2010
Externally publishedYes
EventASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels - Montreal, QC, Canada
Duration: 1 Aug 20105 Aug 2010

Other

OtherASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels
CountryCanada
CityMontreal, QC
Period1/8/105/8/10

Fingerprint

Air entrainment
Liquids
Gases
Analytical models
Boundary conditions
Imaging techniques
Experiments

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Bowden, R., Saleh, W., & Hassan, I. (2010). A hybrid model for predicting gas entrainment in a small branch from a co-current flowing gas-liquid regime. In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010 (PARTS A, B AND C ed., Vol. 1, pp. 1363-1371) https://doi.org/10.1115/FEDSM-ICNMM2010-31174

A hybrid model for predicting gas entrainment in a small branch from a co-current flowing gas-liquid regime. / Bowden, Robert; Saleh, Wael; Hassan, Ibrahim.

ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010. Vol. 1 PARTS A, B AND C. ed. 2010. p. 1363-1371.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bowden, R, Saleh, W & Hassan, I 2010, A hybrid model for predicting gas entrainment in a small branch from a co-current flowing gas-liquid regime. in ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010. PARTS A, B AND C edn, vol. 1, pp. 1363-1371, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, Montreal, QC, Canada, 1/8/10. https://doi.org/10.1115/FEDSM-ICNMM2010-31174
Bowden R, Saleh W, Hassan I. A hybrid model for predicting gas entrainment in a small branch from a co-current flowing gas-liquid regime. In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010. PARTS A, B AND C ed. Vol. 1. 2010. p. 1363-1371 https://doi.org/10.1115/FEDSM-ICNMM2010-31174
Bowden, Robert ; Saleh, Wael ; Hassan, Ibrahim. / A hybrid model for predicting gas entrainment in a small branch from a co-current flowing gas-liquid regime. ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010. Vol. 1 PARTS A, B AND C. ed. 2010. pp. 1363-1371
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