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Investigation of the swirl flow on anode surface in high-current vacuum arcs
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10.1063/1.3684974
/content/aip/journal/jap/111/4/10.1063/1.3684974
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/4/10.1063/1.3684974

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Experimental result of the clockwise swirl flow (indicated by the white arrow) of liquid copper on anode surface of the cup-shaped AMF electrodes at 12.5 kA (rms). The lower electrode is anode and the experimental conditions were illustrated in Ref. 24.

Image of FIG. 2.
FIG. 2.

(Color online) Illustration of the electromagnetic force in the anode contact plate.

Image of FIG. 3.
FIG. 3.

Radial distribution of Br of the cup-shaped AMF contacts at the anode surface at the current peak of 12.5 kA (rms), the contact diameter is 41 mm and the gap distance is 10 mm.

Image of FIG. 4.
FIG. 4.

(Color online) Illustration of the electromagnetic force in the anode liquid pool.

Image of FIG. 5.
FIG. 5.

(Color online) Illustration of interaction between inclined cathode plasma jets and anode surface, especially the anode melting pool indicated in the ellipse.

Image of FIG. 6.
FIG. 6.

(Color online) Dimensions of the anode contact plate and the swirling liquid pool in the experimental result in FIG. 1.

Image of FIG. 7.
FIG. 7.

(Color online) Appearance and current flow direction of (a) plate electrode and (b) cup-shaped plate electrode used in the experiments.

Image of FIG. 8.
FIG. 8.

(Color online) (a) Clockwise swirl flow of liquid metal on anode surface of the plate electrodes at AMF of 46.5 mT pointed from anode to cathode, the latter image is 590 μs later than the former; (b) Anticlockwise swirl flow of liquid metal on anode surface of the plate electrodes at AMF of 46.5 mT pointed from cathode to anode, the latter image is 406 μs later than the former.

Image of FIG. 9.
FIG. 9.

(Color online) Clockwise swirl flow of liquid metal on anode surface of the plate electrodes when an external AMF of 46.5 mT from anode to cathode is applied (enhanced online). [URL: http://dx.doi.org/10.1063/1.3684974.1]10.1063/1.3684974.1

Image of FIG. 10.
FIG. 10.

(Color online) Anticlockwise swirl flow of liquid metal on anode surface of the plate electrodes when an external AMF of 46.5 mT from cathode to anode is applied (enhanced online). [URL: http://dx.doi.org/10.1063/1.3684974.2]10.1063/1.3684974.2

Image of FIG. 11.
FIG. 11.

(Color online) (a) Clockwise swirl flow of liquid metal on anode surface of the cup-shaped plate electrodes at AMF of 46.5 mT pointed from anode to cathode, the latter image is 472μs later than the former; (b) Anticlockwise swirl flow of liquid metal on anode surface of the cup-shaped plate electrodes at AMF of 46.5 mT pointed from cathode to anode, the latter image is 590μs later than the former.

Image of FIG. 12.
FIG. 12.

(Color online) Clockwise swirl flow of liquid metal on anode surface of the cup-shaped plate electrodes when an external AMF of 46.5 mT from anode to cathode is applied (enhanced online). [URL: http://dx.doi.org/10.1063/1.3684974.3]10.1063/1.3684974.3

Image of FIG. 13.
FIG. 13.

(Color online) Anticlockwise swirl flow of liquid metal on anode surface of the cup-shaped plate electrodes when an external AMF of 46.5 mT from cathode to anode is applied (enhanced online). [URL: http://dx.doi.org/10.1063/1.3684974.4]10.1063/1.3684974.4

Image of FIG. 14.
FIG. 14.

(Color online) Illustration of the inclination of composite magnetic field at different AMF directions, (a) AMF from anode to cathode, (b) AMF from cathode to anode.

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/content/aip/journal/jap/111/4/10.1063/1.3684974
2012-02-17
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Investigation of the swirl flow on anode surface in high-current vacuum arcs
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/4/10.1063/1.3684974
10.1063/1.3684974
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