Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Non-Isothermal Creeping Flows in a Pipeline Network : Existence Results. / Baranovskii, Evgenii S.; Provotorov, Vyacheslav V.; Artemov, Mikhail A.; Zhabko, Alexey P.
в: Symmetry-Basel, Том 13, № 7, 1300, 19.07.2021.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Non-Isothermal Creeping Flows in a Pipeline Network
T2 - Existence Results
AU - Baranovskii, Evgenii S.
AU - Provotorov, Vyacheslav V.
AU - Artemov, Mikhail A.
AU - Zhabko, Alexey P.
N1 - Baranovskii, E.S.; Provotorov, V.V.; Artemov, M.A.; Zhabko, A.P. Non-Isothermal Creeping Flows in a Pipeline Network: Existence Results. Symmetry 2021, 13, 1300. https://doi.org/10.3390/sym13071300
PY - 2021/7/19
Y1 - 2021/7/19
N2 - This paper deals with a 3D mathematical model for the non-isothermal steady-state flow of an incompressible fluid with temperature-dependent viscosity in a pipeline network. Using the pressure and heat flux boundary conditions, as well as the conjugation conditions to satisfy the mass balance in interior junctions of the network, we propose the weak formulation of the nonlinear boundary value problem that arises in the framework of this model. The main result of our work is an existence theorem (in the class of weak solutions) for large data. The proof of this theorem is based on a combination of the Galerkin approximation scheme with one result from the field of topological degrees for odd mappings defined on symmetric domains.
AB - This paper deals with a 3D mathematical model for the non-isothermal steady-state flow of an incompressible fluid with temperature-dependent viscosity in a pipeline network. Using the pressure and heat flux boundary conditions, as well as the conjugation conditions to satisfy the mass balance in interior junctions of the network, we propose the weak formulation of the nonlinear boundary value problem that arises in the framework of this model. The main result of our work is an existence theorem (in the class of weak solutions) for large data. The proof of this theorem is based on a combination of the Galerkin approximation scheme with one result from the field of topological degrees for odd mappings defined on symmetric domains.
KW - pipeline network
KW - non-isothermal flows
KW - temperature-dependent viscosity
KW - pressure boundary conditions
KW - weak solutions
KW - large-date existence
KW - OPTIMAL BOUNDARY CONTROL
KW - NAVIER-STOKES EQUATIONS
KW - GAS-FLOW
KW - ASYMPTOTIC ANALYSIS
KW - RIEMANN PROBLEM
KW - MODEL
KW - SYSTEM
KW - Large-date existence
KW - Pipeline network
KW - Non-isothermal flows
KW - Weak solutions
KW - Pressure boundary conditions
KW - Temperature-dependent viscosity
UR - http://www.scopus.com/inward/record.url?scp=85111381355&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/35e475ab-d8d2-35d4-9e55-24c01a0ba29b/
U2 - 10.3390/sym13071300
DO - 10.3390/sym13071300
M3 - Article
VL - 13
JO - Symmetry
JF - Symmetry
SN - 2073-8994
IS - 7
M1 - 1300
ER -
ID: 86577916