Mechanism of Wire Explosion Plasma Acceleration in Strong Axial Magnetic Field

• Authors: Yu. Adamian , G. Shneerson
• Languages of publication: EN

Abstracts

EN

In previous wire explosion experiments significant rise of plasma expansion speed is registered when strong axial magnetic field (50 T) is applied. Sharp drop of media conductivity takes place in peripheral area because of density decrease. It is shown in this work that the conductivity drop is the main cause of plasma acceleration. During plasma expansion in axial field azimuthal current is induced. In plasma layer losing conductivity takes place azimuthal current energy release. As a result, pressure shock is formed and low-density external plasma layer is accelerated.

Keywords

EN

47.65.-d

Discipline

• 47.65.-d: Magnetohydrodynamics and electrohydrodynamics(see also 47.35.Tv Magnetohydrodynamic waves; 52.30.Cv Magnetohydrodynamics, and 52.65.Kj Magnetohydrodynamics and fluid equation in Physics of plasmas and electric discharges; 83.80.Gv Electro- and magnetorheological fluids in Rheology)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 6
• Pages: 1069-1071

Dates

published

2009-06

Contributors

author

Yu. Adamian

• Saint-Petersburg State Polytechnical University, Politechnicheskaya st. 29, 195251 Saint-Petersburg, Russian Federation

author

G. Shneerson

• Saint-Petersburg State Polytechnical University, Politechnicheskaya st. 29, 195251 Saint-Petersburg, Russian Federation

References

• 1. Yu.E. Adamian, V.M. Vasilevskiy, S.N. Kolgatin, G.A. Shneerson, Zh. Tech. Fiz. 69, 121 (1999) (in Russian); Technical Phys. 44, 588 (1999)
• 2. Yu.D. Bakulin, V.F. Kouropatenko, A.V. Louchinsky, Zh. Tech. Fiz. 46, 1963 (1976) (in Russian) ( Sov. Phys.-Technical Phys. 20, 1963 (1976))
• 3. I.B. Chekmarev, Prikladnaya Matematika i Mekhanika 2, 382 (1960) (in Russian)

Identifiers

DOI

10.12693/APhysPolA.115.1069