Numerical analysis of a corrected Smagorinsky model

F Siddiqua, X Xie - Numerical Methods for Partial Differential …, 2023 - Wiley Online Library
The classical Smagorinsky model's solution is an approximation to a (resolved) mean
velocity. Since it is an eddy viscosity model, it cannot represent a flow of energy from …

Inverse problem for the Sobolev type equation of higher order

A Zamyshlyaeva, A Lut - Mathematics, 2021 - mdpi.com
The article investigates the inverse problem for a complete, inhomogeneous, higher-order
Sobolev type equation, together with the Cauchy and overdetermination conditions. This …

Model for aqueous polymer solutions with damping term: Solvability and vanishing relaxation limit

ES Baranovskii, MA Artemov - Polymers, 2022 - mdpi.com
The main aim of this paper is to investigate the solvability of the steady-state flow model for
low-concentrated aqueous polymer solutions with a damping term in a bounded domain …

Optimal feedback control problem for inhomogeneous Voigt fluid motion model

V Zvyagin, M Turbin - Journal of Fixed Point Theory and Applications, 2021 - Springer
In the present paper, we study weak solvability of the optimal feedback control problem for
the inhomogeneous Voigt fluid motion model. The proof is based on the approximation …

An inverse problem for Kelvin–Voigt equations perturbed by isotropic diffusion and damping

K Khompysh, K Kenzhebai - Mathematical Methods in the …, 2022 - Wiley Online Library
In this paper, we consider an inverse problem of finding a coefficient of right hand side of the
following system of Kelvin–Voigt equations perturbed by an isotropic diffusion and damping …

Analysis of inhomogeneous boundary value problems for generalized Boussinesq model of mass transfer

B RV, S Zh. Yu - Journal of Dynamical and Control Systems, 2023 - Springer
The global solvability of the boundary value problem for the nonlinear mass transfer
equations is proved under inhomogeneous Dirichlet boundary conditions for the velocity …

A modular Voigt regularization of the Crank-Nicolson finite element method for the Navier-Stokes equations

Y Rong, JA Fiordilino, F Shi, Y Cao - Journal of Scientific Computing, 2022 - Springer
We study a modular Crank-Nicolson based Voigt regularization algorithm for the Navier-
Stokes equations. This algorithm adds a minimally intrusive module that not only implements …

The optimal start control problem for 2D Boussinesq equations

ES Baranovskii - Izvestiya: Mathematics, 2022 - iopscience.iop.org
We consider the problem of the optimal start control for two-dimensional Boussinesq
equations describing non-isothermal flows of a viscous fluid in a bounded domain. Using the …

The Navier–Stokes–Voigt equations with position-dependent slip boundary conditions

ES Baranovskii - Zeitschrift für angewandte Mathematik und Physik, 2023 - Springer
We consider an initial-boundary value problem for the Navier–Stokes–Voigt equations with
a general position-dependent Navier-type slip boundary condition, which is formulated in …

Boundary Value and Control Problems for the Stationary Heat Transfer Model with Variable Coefficients

ES Baranovskii, RV Brizitskii, ZY Saritskaia - Journal of Dynamical and …, 2024 - Springer
A stationary heat transfer model generalizing the Boussinesq approximation is considered.
For the corresponding boundary value problem the property of a global existence of its weak …