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Overheat instabilities in the electric explosion of wires

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Abstract

The development of thermal (overheat) instabilities during the electric explosion of a conducting wire was studied based on the theory of small perturbations. It is established that (i) the overheat instabilities are always developed in the course of electric explosions, irrespective of the regime of explosion and (ii) a threshold value of the current density exists for each metal, below which the magnetohydrodynamic screw instabilities grow faster than the overheat instabilities; above this threshold, the latter instabilities predominate.

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Authors and Affiliations

  1. Institute of High-Current Electronics, Siberian Branch, Russian Academy of Sciences, Tomsk, 634055, Russia

    V. I. Oreshkin

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  1. V. I. Oreshkin
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Correspondence to V. I. Oreshkin.

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Original Russian Text © V.I. Oreshkin, 2009, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2009, Vol. 35, No. 1, pp. 76–82.

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Oreshkin, V.I. Overheat instabilities in the electric explosion of wires. Tech. Phys. Lett. 35, 36–39 (2009). https://doi.org/10.1134/S1063785009010118

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  • DOI: https://doi.org/10.1134/S1063785009010118

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