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۱Effect of External Constraints of Magnetic Field and Velocity Shear on the Propagation of Internal Waves in a Chiral Fluid
نویسنده(ها): ،
اطلاعات انتشار: Journal Of Applied Fluid Mechanics، چهارم،شماره۱، ۲۰۱۱، سال
تعداد صفحات: ۶
The propagation of internal electromagnetic waves in an inviscid chiral fluid in the presence of the external constraint of transverse magnetic field is investigated. These waves are shown to be generated due to the stabilizing nature of the distribution of charge density. It is shown that the effect of the external constraint of magnetic field in a chiral fluid is analogous to the effect of viscosity in ordinary fluids. The wave equation, derived from the conservation of mass and momentum together with Maxwell’s equations and suitable auxiliary equations for chiral materials, reveals the existence of a critical level (i.e., resonance level) at which the Doppler shifted frequency Ωd = 0, i.e., at the point where the basic fluid velocity matches with the phase velocity of the wave. The solution of this wave equation is obtained near and away from the critical levels from which the attenuation of waves is predicted using momentum flux. This is verified using group velocity approach.
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