The formation and evolution of the core-corona structure in the electrical explosion of aluminum wire in vacuum: experimental and numerical investigations

The paper contains the results of numerical simulation of stainless steel melt motions on the surface of uranium dioxide. The investigations are performed for purposes of understanding of the fuel rod behavior during the core disruptive accident in the fast reactors. The systems of mass, energy and momentum conservation equations are solved to simulate melt motion on the surface of the fuel pin. Heat transfer and friction between melt and pin's surface and melt and coolant flow are taken into consideration. The dependences of mass of the melt and the features of the melt motion on coolant velocity and contact angle between melt and surface of the fuel rod are presented.

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Suppression of the core-corona structure in single wire Z pinches using a fast current rising and low energy storaged pulsed power machine

2013 Abstracts IEEE International Conference on Plasma Science (ICOPS) ◽

10.1109/plasma.2013.6635135 ◽

2013 ◽

Author(s):

Jian Wu ◽

Zhongqian Shi ◽

Xingwen Li ◽

Shenli Jia ◽

Aici Qiu

Keyword(s):

Pulsed Power ◽

Low Energy ◽

Single Wire ◽

The Core ◽

Power Machine ◽

Corona Structure

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Large-Scale Internal Magnetic Field of the Sun

Symposium - International Astronomical Union ◽

10.1017/s0074180900044399 ◽

1990 ◽

Vol 138 ◽

pp. 391-394

Author(s):

A.E. Dudorov ◽

V.N. Krivodubskij ◽

A.A. Ruzmaikin ◽

T.V. Ruzmaikina

Keyword(s):

Magnetic Field ◽

Differential Rotation ◽

Large Scale ◽

The Sun ◽

Poloidal Magnetic Field ◽

The Core ◽

Torsional Waves ◽

Formation And Evolution ◽

Field Lines ◽

The Magnetic Field

The behaviour of the magnetic field during the formation and evolution of the Sun is investigated. It is shown that an internal poloidal magnetic field of the order of 104 − 105 G near the core of the Sun may be compatible with differential rotation and with torsional waves, travelling along the magnetic field lines (Dudorov et al., 1989).

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Fabrication of Copper Clad Aluminum Wire (CCAW) by Indirect Extrusion and Drawing

Materials Science Forum ◽

10.4028/www.scientific.net/msf.449-452.317 ◽

2004 ◽

Vol 449-452 ◽

pp. 317-320 ◽

Cited By ~ 11

Author(s):

Hyouk Chon Kwon ◽

Taek Kyun Jung ◽

Sung Chul Lim ◽

Mok Soon Kim

Keyword(s):

Bonding Strength ◽

Annealing Temperature ◽

Extrusion Process ◽

Extrusion Ratio ◽

Extrusion Temperature ◽

Core Material ◽

Aluminum Wire ◽

The Core ◽

The Difference ◽

Sheath Material

The optimized extrusion conditions from the present research were the extrusion temperature of 573~623K and the extrusion ratio(A0/A) of 21.39. Above the extrusion temperature of 623K, the fracture of sheath material was observed. It is due to the difference of flow stress between the sheath material and the core material during extrusion process. The bonding strength increased with increasing the extrusion temperature and the extrusion ratio. The bonding strength increased with increasing the annealing temperature. However, over 573K, it decreased abruptly since the thick and brittle intermetallic compounds of larger than 3µm were formed. The electricalconductivity of copper clad aluminum wire was about 70%IACS without annealing.

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