Research output: Contribution to journal › Article › peer-review
An MHD Model of an Incompressible Polymeric Fluid : Linear Instability of a Steady State. / Blokhin, A. M.; Rudometova, A. S.; Tkachev, D. L.
In: Journal of Applied and Industrial Mathematics, Vol. 14, No. 3, 01.08.2020, p. 430-442.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - An MHD Model of an Incompressible Polymeric Fluid
T2 - Linear Instability of a Steady State
AU - Blokhin, A. M.
AU - Rudometova, A. S.
AU - Tkachev, D. L.
PY - 2020/8/1
Y1 - 2020/8/1
N2 - Abstract: We study linear stability of a steady state for a generalization of the basic rheologicalPokrovskii–Vinogradov model which describes the flows of melts and solutions of anincompressible viscoelastic polymeric medium in the nonisothermal case under the influence ofa magnetic field. We prove that the corresponding linearized problem describingmagnetohydrodynamic 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 channelboundaries), there exist solutions whose amplitude grows exponentially (in the class of functionsperiodic along the channel).
AB - Abstract: We study linear stability of a steady state for a generalization of the basic rheologicalPokrovskii–Vinogradov model which describes the flows of melts and solutions of anincompressible viscoelastic polymeric medium in the nonisothermal case under the influence ofa magnetic field. We prove that the corresponding linearized problem describingmagnetohydrodynamic 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 channelboundaries), there exist solutions whose amplitude grows exponentially (in the class of functionsperiodic along the channel).
KW - incompressible viscoelastic polymeric fluid
KW - Lyapunov stability
KW - magnetohydrodynamic flow
KW - Poiseuille-type flow
KW - rheological correlation
KW - spectrum
KW - steady state
UR - http://www.scopus.com/inward/record.url?scp=85094676365&partnerID=8YFLogxK
U2 - 10.1134/S1990478920030035
DO - 10.1134/S1990478920030035
M3 - Article
AN - SCOPUS:85094676365
VL - 14
SP - 430
EP - 442
JO - Journal of Applied and Industrial Mathematics
JF - Journal of Applied and Industrial Mathematics
SN - 1990-4789
IS - 3
ER -
ID: 25865480