Advection and dispersion induced by an interface between two immiscible fluids in a laminar flow

Dejam, Morteza

doi:10.1002/aic.17928

Cited by 2 publications

(2 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Various applications use liquid–liquid extraction methods during industrial processes, such as the separation of petroleum fractions, 5,6 the purification of uranium, 7 the extraction of nonferrous metals, 8 the extraction of antibiotics, 9 and wastewater treatment 10 . The main equipment used in these extraction processes includes: pulsed extraction columns, 11 mixer–settlers, 12,13 centrifugal extractors, 14 and microfluidic devices 15–17 . Pulsed extraction columns have been widely used because of their many advantages, such as a small footprint, large processing flux, no rotating internal parts, and the ability to handle materials containing solid particles 18 .…”

Section: Introductionmentioning

confidence: 99%

“…The main equipment used in these extraction processes includes: pulsed extraction columns, 11 mixer-settlers, 12,13 centrifugal extractors, 14 and microfluidic devices. [15][16][17] Pulsed extraction columns have been widely used because of their many advantages, such as a small footprint, large processing flux, no rotating internal parts, and the ability to handle materials containing solid particles. 18 Because the interfacial tension is a key physical property in multiphase flow, 19 it is important for predicting hydraulic properties, such as the Sauter mean diameter (SMD) of liquid droplets, 20 flooding characteristics, 21 and dispersed phase holdup 22 in pulsed extraction columns.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Interfacial relaxation of droplets caused by mass transfer in a pulsed column

Wang,

Zhou,

Zheng

et al. 2024

AIChE Journal

View full text Add to dashboard Cite

The method developed in our previous work (Wang et al., AIChE J. 2020; 66(8): e16257), was used to study the influence of the mass‐transfer direction and flux on the dynamic interfacial tension (DIFT) in a pulsed column. The breakup frequency was the highest near the entrance of the dispersed droplet, corresponding to the lowest interfacial tension and highest mass transfer flux. The decrease in the interfacial tension was proportional to the square root of mass‐transfer flux, and this difference is defined as a new parameter, named interfacial relaxation. When the mass‐transfer direction was changed from the dispersed phase to continuous phase to the opposite direction, the proportion of binary breakage was decreased from ~80% to ~40% and the interfacial relaxation was more sensitive to the mass‐transfer flux. A DIFT model was finally established based on the interfacial relaxation parameter, which predicted the experimental results with an error of ±10%.

show abstract

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Interfacial relaxation of droplets caused by mass transfer in a pulsed column

Wang,

Zhou,

Zheng

et al. 2024

AIChE Journal

View full text Add to dashboard Cite

show abstract

Thermal Dispersion in a Fracture‐Matrix System With Application to Geothermal Energy Extraction

Dejam,

Hassanzadeh

2023

Water Resources Research

Self Cite

View full text Add to dashboard Cite

We studied thermal dispersion in a fracture walled by a porous and permeable rock matrix, where the fluid flow and heat transport are coupled across the interface between these media. The reduced order model of the advective‐dispersive heat transport in the fracture‐matrix system is resulted from the Reynolds decomposition. The model allows the calculations of the upscaled dispersion and advection terms. A simple scaling relation is developed to estimate heat extraction from geothermal fracture‐matrix systems. It was shown that the extracted heat is inversely proportional to the height of the matrix squared. Our finding also revealed that the dimensionless extracted heat is weakly dependent on fracture Peclet number and matrix Darcy number and is threefold the matrix dimensionless thermal diffusion time. In the analysis presented, we assumed a homogenous system. The heterogeneity caused by a variation in fracture and rock matrix properties (such as porosity, permeability, thickness, and aperture) adds more complexity. Including these complexities in the determination of the thermal dispersion with the coupled fracture‐matrix approach needs further investigation. However, the developed model, along with the findings of this study, provides valuable insight into the physics of thermal energy extraction from fractured geothermal reservoirs and can be used for testing the underlying hypotheses in real‐field applications.

show abstract

Advection and dispersion induced by an interface between two immiscible fluids in a laminar flow

Cited by 2 publications

References 32 publications

Interfacial relaxation of droplets caused by mass transfer in a pulsed column

Interfacial relaxation of droplets caused by mass transfer in a pulsed column

Thermal Dispersion in a Fracture‐Matrix System With Application to Geothermal Energy Extraction

Contact Info

Product

Resources

About