Characterizing the onset of gas entrapment in a single discharging bottom branch through flow visualization

R. C. Bowden, Ibrahim Hassan

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

Abstract

The incipience of two-phase flow in discharging branches, from a stratified gas-liquid region, has major implications in industrial applications where safety is of primary concern. The transition from single phase liquid to a two phase gas-liquid mixture is termed the onset of gas entrainment, and may be formed by either vortex or vortex-free mechanisms. The two phase flow quality in the discharging branch is greatly impacted by vortex-free gas entrainment, as compared with gas entrainment due to vortex formation. Presented is a preliminary experimental investigation to demonstrate quantitative measurements of the liquid flow field at the onset of gas entrainment in a single discharging bottom branch. The three dimensional flow field is resolved into three horizontal planes and a single vertical plane. Results indicate a strong dependency of the flow field on the radial component, directed toward the branch center, and where a solid wall is present a larger tangential component.

Original languageEnglish
Title of host publication2006 ASME Joint U.S.-European Fluids Engineering Summer Meeting, FEDSM 2006
Volume2006
Publication statusPublished - 2006
Externally publishedYes
Event2006 2nd ASME Joint U.S.-European Fluids Engineering Summer Meeting, FEDSM 2006 - Miami, FL, United States
Duration: 17 Jul 200620 Jul 2006

Other

Other2006 2nd ASME Joint U.S.-European Fluids Engineering Summer Meeting, FEDSM 2006
CountryUnited States
CityMiami, FL
Period17/7/0620/7/06

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Bowden, R. C., & Hassan, I. (2006). Characterizing the onset of gas entrapment in a single discharging bottom branch through flow visualization. In 2006 ASME Joint U.S.-European Fluids Engineering Summer Meeting, FEDSM 2006 (Vol. 2006)