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Calculation of the electric potential and Lorentz force acting on a locally ionized region in a magnetohydrodynamic flow placed in a nonuniform magnetic field

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Abstract

An analytical solution to electrodynamic equations for the electric potential in a locally ionized magnetohydrodynamic (MHD) flow in the nonuniform magnetic field produced by a straight-line conductor is found. Analytical formulas are obtained to evaluate the volume density of the Lorentz force and the integral Lorentz force acting on the locally ionized region of the MHD flow. It is shown that the MHD action on the locally ionized flow in the nonuniform magnetic field can be used to control the elevating force as well as the ratio of the elevating force to the drag force.

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Authors and Affiliations

  1. St. Petersburg State University, Universitetskii pr. 28, Petrodvorets, St. Petersburg, 198904, Russia

    E. G. Sheikin

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  1. E. G. Sheikin
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Correspondence to E. G. Sheikin.

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Original Russian Text © E.G. Sheikin, 2009, published in Zhurnal Tekhnicheskoĭ Fiziki, 2009, Vol. 79, No. 2, pp. 58–65.

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Sheikin, E.G. Calculation of the electric potential and Lorentz force acting on a locally ionized region in a magnetohydrodynamic flow placed in a nonuniform magnetic field. Tech. Phys. 54, 221–228 (2009). https://doi.org/10.1134/S1063784209020108

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