Research output: Contribution to journal › Article › peer-review
Free Boundary Problem in a Polymer Solution Model. / Petrova, A. G.; Pukhnachev, V. V.
In: Russian Journal of Mathematical Physics, Vol. 28, No. 1, 01.2021, p. 96-103.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Free Boundary Problem in a Polymer Solution Model
AU - Petrova, A. G.
AU - Pukhnachev, V. V.
N1 - Funding Information: The research was financially supported by the Russian Foundation for Basic Research (project 19-01-0096). Publisher Copyright: © 2021, Pleiades Publishing, Ltd. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/1
Y1 - 2021/1
N2 - An initial boundary value problem with a free boundary for a third-order integro-differential equation for the unsteady flow of an aqueous polymer solution in a strip is studied. Questions concerning the solvability of the problem and the qualitative behavior of the solution in dependence on the initial data are investigated: time-local resolvability is established under natural conditions on the input data and conditions of global solvability are found for the problem of strip narrowing. Conditions for the bowing-up of the solution in finite time in the model problem of strip expansion are presented. The problem of small perturbations of the flow of a strip of viscous fluid with respect to a parameter proportional to the relaxation viscosity is also consider.
AB - An initial boundary value problem with a free boundary for a third-order integro-differential equation for the unsteady flow of an aqueous polymer solution in a strip is studied. Questions concerning the solvability of the problem and the qualitative behavior of the solution in dependence on the initial data are investigated: time-local resolvability is established under natural conditions on the input data and conditions of global solvability are found for the problem of strip narrowing. Conditions for the bowing-up of the solution in finite time in the model problem of strip expansion are presented. The problem of small perturbations of the flow of a strip of viscous fluid with respect to a parameter proportional to the relaxation viscosity is also consider.
UR - http://www.scopus.com/inward/record.url?scp=85102742475&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/493b06d8-383c-3eaa-a8c2-18c7770486b4/
U2 - 10.1134/S1061920821010106
DO - 10.1134/S1061920821010106
M3 - Article
AN - SCOPUS:85102742475
VL - 28
SP - 96
EP - 103
JO - Russian Journal of Mathematical Physics
JF - Russian Journal of Mathematical Physics
SN - 1061-9208
IS - 1
ER -
ID: 28143099