Gas-liquid downward flow through narrow vertical conduits: effect of angle of entry and tube-diameter on flow patterns
-
Amit Kumar
,
Gargi Das
Abstract
The present study investigates the flow pattern characteristics of air-water co-current down-flow in millichannels. The experiments have been performed in glass tube of diameter 0.0042 and 0.008 m. The fluids are injected through Y entry the included angle between the Y arms being 45°, 90°, 135°, and 180° (T Entry). The investigation reveals that the flow patterns are function of tube-diameter, and angle of fluid entry. Interestingly, stratified flow has been observed for steeper Y entry section at low liquid flow rates.
- Notation
- D
diameter of conduit
- J
Superficial velocity
- S
Interfacial area
- U
In situ velocity
- Eo
Eotvos number
- Re
Reynolds number
- Greek symbols
- ρ
Density
- σ
Surface tension
- Subscripts and superscripts
- G
Gas
- L
Liquid
Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: None declared.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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© 2021 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Editorial
- 10.1515/ijcre-2021-0153
- Special Issue Articles
- Gas-liquid downward flow through narrow vertical conduits: effect of angle of entry and tube-diameter on flow patterns
- Liquid antisolvent recrystallization and solid dispersion of flufenamic acid with polyvinylpyrrolidone K-30
- Forced convection heat transfer study of a blunt-headed cylinder in non-Newtonian power-law fluids
- Comparative studies on the separation of endocrine disrupting compounds from aquatic environment by emulsion liquid membrane and hollow fiber supported liquid membrane
- Instabilities of a freely moving spherical particle in a Newtonian fluid: Direct Numerical Simulation
- Numerical simulation of squeezing flow Jeffrey nanofluid confined by two parallel disks with the help of chemical reaction: effects of activation energy and microorganisms
- Development of inexpensive, simple and environment-friendly solar selective absorber using copper nanoparticle
- Effect of contacting pattern and various surfactants on phenol extraction efficiency using emulsion liquid membrane
- Foam drainage enhancement in foam fractionation for dye removal: process optimization by Taguchi methodology and grey relational analysis
- Phase equilibrium in n-octane/water separation units: vapor pressures, vapor and liquid molar fractions
Artikel in diesem Heft
- Frontmatter
- Editorial
- 10.1515/ijcre-2021-0153
- Special Issue Articles
- Gas-liquid downward flow through narrow vertical conduits: effect of angle of entry and tube-diameter on flow patterns
- Liquid antisolvent recrystallization and solid dispersion of flufenamic acid with polyvinylpyrrolidone K-30
- Forced convection heat transfer study of a blunt-headed cylinder in non-Newtonian power-law fluids
- Comparative studies on the separation of endocrine disrupting compounds from aquatic environment by emulsion liquid membrane and hollow fiber supported liquid membrane
- Instabilities of a freely moving spherical particle in a Newtonian fluid: Direct Numerical Simulation
- Numerical simulation of squeezing flow Jeffrey nanofluid confined by two parallel disks with the help of chemical reaction: effects of activation energy and microorganisms
- Development of inexpensive, simple and environment-friendly solar selective absorber using copper nanoparticle
- Effect of contacting pattern and various surfactants on phenol extraction efficiency using emulsion liquid membrane
- Foam drainage enhancement in foam fractionation for dye removal: process optimization by Taguchi methodology and grey relational analysis
- Phase equilibrium in n-octane/water separation units: vapor pressures, vapor and liquid molar fractions
