Geodesic
An MHD model of an incompressible polymeric fluid:
Sibirskij žurnal industrialʹnoj matematiki, Tome 23 (2020) no. 3, pp. 16-30

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We study linear stability of a steady state for a generalization of the basic rheological Pokrovskii—Vinogradov model which describes the flows of melts and solutions of an incompressible viscoelastic polymeric medium in the nonisothermal case under the influence of a magnetic field. We prove that the corresponding linearized problem describing magnetohydrodynamic flows of polymers in an infinite plane channel has the following property: For some values of the conduction current which is given on the electrodes (i.e. at the channel boundaries), there exist solutions whose amplitude grows exponentially (in the class of functions periodic along the channel).
Keywords: incompressible viscoelastic polymeric fluid, rheological correlation, magnetohydrodynamic flow, steady state, spectrum, Lyapunov stability. .
Mots-clés : Poiseuille-type flow 
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     title = {An {MHD} model of an incompressible polymeric fluid:},
     journal = {Sibirskij \v{z}urnal industrialʹnoj matematiki},
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A. M. Blokhin; A. S. Rudometova; D. L. Tkachev. An MHD model of an incompressible polymeric fluid:. Sibirskij žurnal industrialʹnoj matematiki, Tome 23 (2020) no. 3, pp. 16-30. http://geodesic.mathdoc.fr/item/SJIM_2020_23_3_a1/