Bubble flow in a static magnetic field

Subrat Das; Lanka Dinushke Weerasiri; Veeriah Jegatheesan

doi:10.1002/9781119093435.ch133

Bubble flow in a static magnetic field

Subrat Das, Lanka Dinushke Weerasiri, Veeriah Jegatheesan

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

A lab-based electrolytic-cell is designed to analyze the effect of external magnetic field on bubble evolution underneath an anode surface. Buckingham Pi theorem is used to provide a complete list of dimensionless parameters for a typical cell configuration. There is an increase in bubble size and the number of bubbles with time. The hydrodynamic convection is apparent due to the effect of electrolyte flow caused by swarm of bubbles rising along the anode surface. The image sequence shows that swarm of bubbles exhibit a swirling flow-field in the presence of the magnetic field. The coalescence process intensifies in an area where magnetic field is higher. As a consequence, bubbles are swept away by the magneto-hydrodynamic (MHD) convection. These results suggest that a magnetic field causes remarkable improvement on the surface coverage of the anode.

Original language	English
Title of host publication	Light Metals 2015
Publisher	Wiley-Blackwell
Pages	789-793
Number of pages	5
ISBN (Electronic)	9781119093435
ISBN (Print)	9781119082446
DOIs	https://doi.org/10.1002/9781119093435.ch133
Publication status	Published - 20 Feb 2015
Externally published	Yes

Keywords

Dimensional Analysis
Hall-Héroult cell
Magneto-hydrodynamics

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10.1002/9781119093435.ch133

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abstract = "A lab-based electrolytic-cell is designed to analyze the effect of external magnetic field on bubble evolution underneath an anode surface. Buckingham Pi theorem is used to provide a complete list of dimensionless parameters for a typical cell configuration. There is an increase in bubble size and the number of bubbles with time. The hydrodynamic convection is apparent due to the effect of electrolyte flow caused by swarm of bubbles rising along the anode surface. The image sequence shows that swarm of bubbles exhibit a swirling flow-field in the presence of the magnetic field. The coalescence process intensifies in an area where magnetic field is higher. As a consequence, bubbles are swept away by the magneto-hydrodynamic (MHD) convection. These results suggest that a magnetic field causes remarkable improvement on the surface coverage of the anode.",

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AU - Das, Subrat

AU - Weerasiri, Lanka Dinushke

AU - Jegatheesan, Veeriah

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N2 - A lab-based electrolytic-cell is designed to analyze the effect of external magnetic field on bubble evolution underneath an anode surface. Buckingham Pi theorem is used to provide a complete list of dimensionless parameters for a typical cell configuration. There is an increase in bubble size and the number of bubbles with time. The hydrodynamic convection is apparent due to the effect of electrolyte flow caused by swarm of bubbles rising along the anode surface. The image sequence shows that swarm of bubbles exhibit a swirling flow-field in the presence of the magnetic field. The coalescence process intensifies in an area where magnetic field is higher. As a consequence, bubbles are swept away by the magneto-hydrodynamic (MHD) convection. These results suggest that a magnetic field causes remarkable improvement on the surface coverage of the anode.

AB - A lab-based electrolytic-cell is designed to analyze the effect of external magnetic field on bubble evolution underneath an anode surface. Buckingham Pi theorem is used to provide a complete list of dimensionless parameters for a typical cell configuration. There is an increase in bubble size and the number of bubbles with time. The hydrodynamic convection is apparent due to the effect of electrolyte flow caused by swarm of bubbles rising along the anode surface. The image sequence shows that swarm of bubbles exhibit a swirling flow-field in the presence of the magnetic field. The coalescence process intensifies in an area where magnetic field is higher. As a consequence, bubbles are swept away by the magneto-hydrodynamic (MHD) convection. These results suggest that a magnetic field causes remarkable improvement on the surface coverage of the anode.

KW - Dimensional Analysis

KW - Hall-Héroult cell

KW - Magneto-hydrodynamics

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EP - 793

BT - Light Metals 2015

PB - Wiley-Blackwell

ER -

Bubble flow in a static magnetic field

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Keywords

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