Flow of conducting liquid around two nonconducting particles in DC electromagnetic field and the electromagnetic migration force

Ogasawara, Takuma; Yoshikawa, Noboru; Shoji, Tetsuya; Asai, Toshihumi

doi:10.1007/s11663-004-0079-4

Cited by 12 publications

(12 citation statements)

References 10 publications

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“…According to the previous results on the same diameter, 10) the flow direction is upward in the Case 1, however, the direction is opposite in Case 2. The penetrating flow was weaker in Case 3 configuration, because of the geometric reason.…”

Section: Em-flow State Around Two Particles In Com-supporting

confidence: 54%

“…In the succeeding study, 10) it was reported that the em- flow around the particles influenced the em migration forces (Gc values). Although the contribution of the viscous stress is about 10 % of the em pressure, their dependence was significant in Case 1 and 2, however, the influence was weak in Case 3.…”

Section: Influence Of Em-flow States On the Gc Magnitudementioning

confidence: 98%

“…5. In this figure, our first results of the two particles without considering em-flow 10) are plotted with open marks and the results by considering the em-flow 9) are plotted with closed marks. Dependence of Case 2 has different tendency from the other two cases.…”

Section: Magnitude Of Em-migration Force (Gc)mentioning

confidence: 99%

“…Interaction forces in Case 1 configuration is obtained by integrating F p, x (x-component of surface force vector, F px ϭ (p · n) x , p: pressure (scalar), n: surface normal vector) over the particle surface by Eq. (10). In order to obtain the insight for formation of the migration force, distributions of F p, x component on the particle surface are compared.…”

Section: On the Nature Of The Interaction Forcementioning

confidence: 99%

“…In our previous study, 9) interaction force and the migration forces between two non-conducting particles in three different configurations were calculated without considering the em-flow. In the following study, 10) their forces were calculated with consideration of em-flows around two particles. As a result, magnitude of the migration forces (Gc: Geometric coefficient, migration force divided by the bulk em force and by the volume) varied with the configuration of the two particles with respect to the DC em field, however, the interaction force such as attractive or repulsive force between the two particles were negligibly small in all the cases examined.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Electromagnetic Flow around Two Non-conducting Particles and the Interaction Forces -Different Diameter Cases-

et al. 2003

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Section: Em-flow State Around Two Particles In Com-supporting

confidence: 54%

Section: Influence Of Em-flow States On the Gc Magnitudementioning

confidence: 98%

Section: Magnitude Of Em-migration Force (Gc)mentioning

confidence: 99%

Section: On the Nature Of The Interaction Forcementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Electromagnetic Flow around Two Non-conducting Particles and the Interaction Forces -Different Diameter Cases-

et al. 2003

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Deep Insight into the Pinch Effect in a Tundish with Channel‐Type Induction Heater

Zhang

Lei

Ding

et al. 2022

steel research int.

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Tundish with channel-type induction heater plays an important role in the continuous casting of high-quality steel. Electromagnetic pinch is a unique phenomenon in the tundish with channel type induction heater. To have a deep insight into the electromagnetic pinch effect, numerical simulation is applied to investigate the magnetohydrodynamic flow in the tundish. Research results show that the magnetic field, flow field, and temperature field predicted by the mathematical model agree well with the experimental data. Induced current density, magnetic flux density, electromagnetic force, and Joule heat in two channels are symmetrically distributed and are greater than that in the receiving and distributing chambers. The eccentric electromagnetic force leads to the single-/double-recirculation zones in the channel. There are larger separation areas in the channel enclosed with the iron core than in the other channel, and it is easy for molten steel to separate from the channel wall surface at the top of the channel. Different forces play different roles in the pinch condition, and the order of importance is as follows: electromagnetic force, stress, gravity, supporting force, centrifugal force, and thermal buoyancy.

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Separation of Non-metallic Inclusions from Molten Steel Using High Frequency Electromagnetic Fields

Wang

Zhang

Tian

et al. 2014

Metall Mater Trans B

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The current work is to investigate the removal of non-metallic inclusions from molten steel using electromagnetic separation under high frequency magnetic fields. A certain amount of aluminum nuggets were added to the molten steel to generate alumina inclusions in the current experiments. A layer of alumina clusters close to the wall of the crucible was observed. Models for the entrapment of inclusions by EM fields were developed, indicating that over 91 pct inclusions were captured within the skin depth (2.31 mm from the wall) and the calculation agreed well with the experimental observation. The fluid flow, solidification of the steel and the motion and entrapment of inclusions were studied by three-dimensional mathematical modeling. The separation mechanism of inclusions from molten steel by EM fields was discussed. Both the experiments and the simulation show that EM separation is a feasible and high-efficient method to remove inclusions from the molten steel.

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Flow of conducting liquid around two nonconducting particles in DC electromagnetic field and the electromagnetic migration force

Cited by 12 publications

References 10 publications

Electromagnetic Flow around Two Non-conducting Particles and the Interaction Forces -Different Diameter Cases-

Electromagnetic Flow around Two Non-conducting Particles and the Interaction Forces -Different Diameter Cases-

Deep Insight into the Pinch Effect in a Tundish with Channel‐Type Induction Heater

Separation of Non-metallic Inclusions from Molten Steel Using High Frequency Electromagnetic Fields

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