Slipping and tangential discontinuity instabilities in quasi-one-dimensional planar and cylindrical flows |
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Authors: | M. V. Kuzelev |
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Affiliation: | 1.Moscow State University,Moscow,Russia |
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Abstract: | An analytical linear theory of instability of an electron beam with a nonuniform directional velocity (slipping instability) against perturbations with wavelengths exceeding the transverse beam size is offered. An analogy with hydrodynamic instabilities of tangential discontinuity of an incompressible liquid flow is drawn. The instability growth rates are calculated for particular cases and in a general form in planar and cylindrical geometries. The stabilizing effect of the external magnetic field is analyzed. |
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