Numerical simulations of stable explosive-emission center plasma expansion in vacuum

Journal Article · Thu Oct 15 00:00:00 EDT 2015 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776115100180· OSTI ID:22472023

Nefedtsev, E. V., E-mail: [e-mail]; Batrakov, A. V., E-mail: [e-mail] ^[1]

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1. Russian Academy of Sciences, Institute of High-Current Electronics (Russian Federation)

We present the results of our numerical simulations of the stable cathode-flare expansion stage in the vacuum-breakdown switching period. We used the model of two-fluid hydrodynamics with corrections that allowed it to be applied to a consistent description of the electron and ion transport in plasma and the electron transport in a plasma-anode vacuum gap without imposing any joining conditions at the expanding plasma boundary. We have analyzed the dynamics of the density, directed velocity, and temperature profiles for both components and the influence of various factors on the plasma-cloud expansion velocity.

• OSTI ID: 22472023
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 121, Issue 4; Other Information: Copyright (c) 2015 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANODES
CATHODES
COMPUTERIZED SIMULATION
CORRECTIONS
ELECTRONS
EMISSION
FLUIDS
HYDRODYNAMICS
PLASMA
PLASMA EXPANSION
VELOCITY