This article is cited in 12 papers

Theoretical and Mathematical Physics

Simulation of generation of ultradisperse particles upon irradiation of metals by a high-power electron beam

N. B. Volkov^a, E. L. Fen'ko^a, A. P. Yalovetz<sup>b

a</sup> Institute of Electrophysics, Ural Branch, Russian Academy of Sciences, Ekaterinburg
^b South Ural State University, Chelyabinsk

Abstract: A model of formation of ultradisperse particles in the plasma torch emerging during evaporation of a metal target by a high-power electron beam is described. A model of heterogeneous media is proposed for describing the plasma torch dynamics taking into account heat conduction, heat transfer and friction between components, relaxation of components to equilibrium, condensation, and evaporation and coagulation of drops as a result of their collisions. Numerical simulation of the generation of ultradisperse particles in the plasma torch formed during irradiation of a metal target by a powerful electron beam is performed. The size distribution of ultradisperse particles is obtained for various regimes of irradiation and cooling.

Received: 22.07.2009
Accepted: 26.02.2010

 English version: Technical Physics, 2010, 55:10, 1389–1399

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