Nonlinear oscillations of a charged jet of a conducting liquid under multimode initial deformation of its surface |
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Authors: | S. O. Shiryaeva N. V. Voronina A. I. Grigor’ev |
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Affiliation: | (1) Demidov State University, Sovetskaya ul. 14, Yaroslavl, 150000, Russia |
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Abstract: | The subject of consideration is a uniformly charged jet of an ideal incompressible conducting liquid moving with a constant velocity along the symmetry axis of an undisturbed cylindrical surface. An evolutionary expression for the jet shape is derived accurate to the second order of smallness in oscillation amplitude for the case when the initial deformation of the equilibrium surface is a superposition of a finite number of both axisymmetric and nonaxisymmetric modes. The flow velocity field in the jet and the electric field distribution near it are determined. The positions of internal nonlinear secondary combined three-mode resonances are found, which are typical of nonlinear corrections to the analytical expressions for the jet shape, flow velocity field potentials, and electrostatic field in the vicinity of the jet. |
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