Two-phase flow patterns in microfluidic cross-shaped junctions and slug hydrodynamics in the dripping regime

Zan Wu; Zhen Cao; Bengt Sunden

doi:10.1115/HT2017-4734

Two-phase flow patterns in microfluidic cross-shaped junctions and slug hydrodynamics in the dripping regime

Zan Wu, Zhen Cao, Bengt Sunden

Heat Transfer

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

Abstract

Flow patterns for water-butanol, water-toluene and waterhexane two-phase flows were visualized in the cross-shaped junctions of three square glass microchannels with hydraulic diameters of 200 μm, 400 μm and 600 μm. Typical flow pattern maps for water-butanol two-phase flow were developed based on Capillary number of the continuous phase and Weber number of the dispersed phase, and compared with a previous flow pattern map in the literature. Three main flow pattern groups were observed, including the tubing/threading regime group, the dripping regime and the jetting regime. The geometry confinement and fluid properties affected the viscous shear and interfacial tension forces and therefore their influence on flow pattern transitions was clarified. Besides, in the dripping regime, the dimensionless slug length can be scaled as a function of the flow rate ratio and the Capillary number of the continuous phase.

Original language	English
Title of host publication	Heat Transfer Equipment; Heat Transfer in Multiphase Systems; Heat Transfer Under Extreme Conditions; Nanoscale Transport Phenomena; Theory and Fundamental Research in Heat Transfer; Thermophysical Properties; Transport Phenomena in Materials Processing and Manufacturing
Publisher	American Society Of Mechanical Engineers (ASME)
Volume	2
ISBN (Electronic)	9780791857892
DOIs	https://doi.org/10.1115/HT2017-4734
Publication status	Published - 2017
Event	ASME 2017 Heat Transfer Summer Conference, HT 2017 - Bellevue, United States Duration: 2017 Jul 9 → 2017 Jul 12

Conference

Conference	ASME 2017 Heat Transfer Summer Conference, HT 2017
Country/Territory	United States
City	Bellevue
Period	2017/07/09 → 2017/07/12

Subject classification (UKÄ)

Energy Engineering

Access to Document

10.1115/HT2017-4734

Cite this

Wu, Z., Cao, Z., & Sunden, B. (2017). Two-phase flow patterns in microfluidic cross-shaped junctions and slug hydrodynamics in the dripping regime. In Heat Transfer Equipment; Heat Transfer in Multiphase Systems; Heat Transfer Under Extreme Conditions; Nanoscale Transport Phenomena; Theory and Fundamental Research in Heat Transfer; Thermophysical Properties; Transport Phenomena in Materials Processing and Manufacturing (Vol. 2). Article HT2017-4734 American Society Of Mechanical Engineers (ASME). https://doi.org/10.1115/HT2017-4734

Wu, Zan ; Cao, Zhen ; Sunden, Bengt. / Two-phase flow patterns in microfluidic cross-shaped junctions and slug hydrodynamics in the dripping regime. Heat Transfer Equipment; Heat Transfer in Multiphase Systems; Heat Transfer Under Extreme Conditions; Nanoscale Transport Phenomena; Theory and Fundamental Research in Heat Transfer; Thermophysical Properties; Transport Phenomena in Materials Processing and Manufacturing. Vol. 2 American Society Of Mechanical Engineers (ASME), 2017.

@inproceedings{be88e5707ed0422c99846cc1b7487ba7,

title = "Two-phase flow patterns in microfluidic cross-shaped junctions and slug hydrodynamics in the dripping regime",

abstract = "Flow patterns for water-butanol, water-toluene and waterhexane two-phase flows were visualized in the cross-shaped junctions of three square glass microchannels with hydraulic diameters of 200 μm, 400 μm and 600 μm. Typical flow pattern maps for water-butanol two-phase flow were developed based on Capillary number of the continuous phase and Weber number of the dispersed phase, and compared with a previous flow pattern map in the literature. Three main flow pattern groups were observed, including the tubing/threading regime group, the dripping regime and the jetting regime. The geometry confinement and fluid properties affected the viscous shear and interfacial tension forces and therefore their influence on flow pattern transitions was clarified. Besides, in the dripping regime, the dimensionless slug length can be scaled as a function of the flow rate ratio and the Capillary number of the continuous phase.",

author = "Zan Wu and Zhen Cao and Bengt Sunden",

year = "2017",

doi = "10.1115/HT2017-4734",

language = "English",

volume = "2",

booktitle = "Heat Transfer Equipment; Heat Transfer in Multiphase Systems; Heat Transfer Under Extreme Conditions; Nanoscale Transport Phenomena; Theory and Fundamental Research in Heat Transfer; Thermophysical Properties; Transport Phenomena in Materials Processing and Manufacturing",

publisher = "American Society Of Mechanical Engineers (ASME)",

address = "United States",

note = "ASME 2017 Heat Transfer Summer Conference, HT 2017 ; Conference date: 09-07-2017 Through 12-07-2017",

}

Wu, Z, Cao, Z & Sunden, B 2017, Two-phase flow patterns in microfluidic cross-shaped junctions and slug hydrodynamics in the dripping regime. in Heat Transfer Equipment; Heat Transfer in Multiphase Systems; Heat Transfer Under Extreme Conditions; Nanoscale Transport Phenomena; Theory and Fundamental Research in Heat Transfer; Thermophysical Properties; Transport Phenomena in Materials Processing and Manufacturing. vol. 2, HT2017-4734, American Society Of Mechanical Engineers (ASME), ASME 2017 Heat Transfer Summer Conference, HT 2017, Bellevue, United States, 2017/07/09. https://doi.org/10.1115/HT2017-4734

Two-phase flow patterns in microfluidic cross-shaped junctions and slug hydrodynamics in the dripping regime. / Wu, Zan; Cao, Zhen; Sunden, Bengt.
Heat Transfer Equipment; Heat Transfer in Multiphase Systems; Heat Transfer Under Extreme Conditions; Nanoscale Transport Phenomena; Theory and Fundamental Research in Heat Transfer; Thermophysical Properties; Transport Phenomena in Materials Processing and Manufacturing. Vol. 2 American Society Of Mechanical Engineers (ASME), 2017. HT2017-4734.

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

TY - GEN

T1 - Two-phase flow patterns in microfluidic cross-shaped junctions and slug hydrodynamics in the dripping regime

AU - Wu, Zan

AU - Cao, Zhen

AU - Sunden, Bengt

PY - 2017

Y1 - 2017

N2 - Flow patterns for water-butanol, water-toluene and waterhexane two-phase flows were visualized in the cross-shaped junctions of three square glass microchannels with hydraulic diameters of 200 μm, 400 μm and 600 μm. Typical flow pattern maps for water-butanol two-phase flow were developed based on Capillary number of the continuous phase and Weber number of the dispersed phase, and compared with a previous flow pattern map in the literature. Three main flow pattern groups were observed, including the tubing/threading regime group, the dripping regime and the jetting regime. The geometry confinement and fluid properties affected the viscous shear and interfacial tension forces and therefore their influence on flow pattern transitions was clarified. Besides, in the dripping regime, the dimensionless slug length can be scaled as a function of the flow rate ratio and the Capillary number of the continuous phase.

AB - Flow patterns for water-butanol, water-toluene and waterhexane two-phase flows were visualized in the cross-shaped junctions of three square glass microchannels with hydraulic diameters of 200 μm, 400 μm and 600 μm. Typical flow pattern maps for water-butanol two-phase flow were developed based on Capillary number of the continuous phase and Weber number of the dispersed phase, and compared with a previous flow pattern map in the literature. Three main flow pattern groups were observed, including the tubing/threading regime group, the dripping regime and the jetting regime. The geometry confinement and fluid properties affected the viscous shear and interfacial tension forces and therefore their influence on flow pattern transitions was clarified. Besides, in the dripping regime, the dimensionless slug length can be scaled as a function of the flow rate ratio and the Capillary number of the continuous phase.

U2 - 10.1115/HT2017-4734

DO - 10.1115/HT2017-4734

M3 - Paper in conference proceeding

AN - SCOPUS:85032940831

VL - 2

BT - Heat Transfer Equipment; Heat Transfer in Multiphase Systems; Heat Transfer Under Extreme Conditions; Nanoscale Transport Phenomena; Theory and Fundamental Research in Heat Transfer; Thermophysical Properties; Transport Phenomena in Materials Processing and Manufacturing

PB - American Society Of Mechanical Engineers (ASME)

T2 - ASME 2017 Heat Transfer Summer Conference, HT 2017

Y2 - 9 July 2017 through 12 July 2017

ER -

Wu Z, Cao Z, Sunden B. Two-phase flow patterns in microfluidic cross-shaped junctions and slug hydrodynamics in the dripping regime. In Heat Transfer Equipment; Heat Transfer in Multiphase Systems; Heat Transfer Under Extreme Conditions; Nanoscale Transport Phenomena; Theory and Fundamental Research in Heat Transfer; Thermophysical Properties; Transport Phenomena in Materials Processing and Manufacturing. Vol. 2. American Society Of Mechanical Engineers (ASME). 2017. HT2017-4734 doi: 10.1115/HT2017-4734

Two-phase flow patterns in microfluidic cross-shaped junctions and slug hydrodynamics in the dripping regime

Abstract

Conference

Subject classification (UKÄ)

Access to Document

Fingerprint

Cite this