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The effect of scaling factors on the pinch-induced transition from a high-velocity sliding contact to the arc mode

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Abstract

Dependence of the velocity of a compact projectile slider accelerated in a railtron, reached by the moment of a transition of the high-velocity sliding contact to the high-current arc mode, on the system parameters and the acceleration regime is determined within the framework of a model assuming the magnetohydrodynamic (pinching) instabilities as the main factor responsible for this transition. It is established that the maximum transition velocity is proportional to the system gauge, specific conductivity, and strength of the slider material and is inversely proportional to the average slider density.

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Authors and Affiliations

  1. Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russia

    É. M. Drobyshevskii

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  1. É. M. Drobyshevskii
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__________

Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 27, No. 8, 2001, pp. 37–42.

Original Russian Text Copyright © 2001 by Drobyshevski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \).

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Drobyshevskii, É.M. The effect of scaling factors on the pinch-induced transition from a high-velocity sliding contact to the arc mode. Tech. Phys. Lett. 27, 323–325 (2001). https://doi.org/10.1134/1.1370214

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  • DOI: https://doi.org/10.1134/1.1370214

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