[HTML][HTML] Inertial manifolds for the hyperviscous Navier–Stokes equations

CG Gal, Y Guo - Journal of Differential Equations, 2018 - Elsevier
We prove the existence of inertial manifolds for the incompressible hyperviscous Navier–
Stokes equations on the two or three-dimensional torus:{u t+ ν (− Δ) β u+(u⋅∇) u+∇ p= f,(t …

Singular limits of Voigt models in fluid dynamics

M Coti Zelati, CG Gal - Journal of Mathematical Fluid Mechanics, 2015 - Springer
We investigate the long-term behavior, as a certain regularization parameter vanishes, of the
three-dimensional Navier–Stokes–Voigt model of a viscoelastic incompressible fluid. We …

Inertial manifolds via spatial averaging revisited

A Kostianko, X Li, C Sun, S Zelik - SIAM Journal on Mathematical Analysis, 2022 - SIAM
The paper gives a comprehensive study of inertial manifolds for semilinear parabolic
equations and their smoothness using the spatial averaging method suggested by Sell and …

Sharp upper and lower bounds of the attractor dimension for 3D damped Euler–Bardina equations

A Ilyin, A Kostianko, S Zelik - Physica D: Nonlinear Phenomena, 2022 - Elsevier
The dependence of the fractal dimension of global attractors for the damped 3D Euler–
Bardina equations on the regularization parameter α> 0 and Ekman damping coefficient γ> …

A note on optimal tokamak control for fusion power simulation

M Holst, V Kungurtsev, S Mukherjee - arXiv preprint arXiv:2211.08984, 2022 - arxiv.org
The Tokamak device is the most promising candidate for producing sustainable electric
power by nuclear fusion. It is a torus-shaped device that confines plasma by a strong …

Uniform tail-ends estimates of the Navier-Stokes equations on unbounded channel-like domains

B Wang - Proceedings of the American Mathematical Society, 2023 - ams.org
This paper deals with the asymptotic compactness of the solutions of the two-dimensional
Navier-Stokes equations defined in unbounded channel-like domains. In order to overcome …

Applications of the Lieb--Thirring and other bounds for orthonormal systems in mathematical hydrodynamics

A Ilyin, A Kostianko, S Zelik - arXiv preprint arXiv:2202.01531, 2022 - arxiv.org
We discuss the estimates for the $ L^ p $-norms of systems of functions that are orthonormal
in $ L^ 2$ and $ H^ 1$, respectively, and their essential role in deriving good or even …

On a regularized family of models for homogeneous incompressible two-phase flows

CG Gal, TT Medjo - Journal of Nonlinear Science, 2014 - Springer
We consider a general family of regularized models for incompressible two-phase flows
based on the Allen–Cahn formulation in n n-dimensional compact Riemannian manifolds for …

Pullback Measure Attractors for Non-autonomous Stochastic 3D Globally Modified Navier–Stokes Equations

R Li, S Mi, D Li - Qualitative Theory of Dynamical Systems, 2024 - Springer
This paper investigates the existence and upper semi-continuity of the pullback measure
attractors of the non-autonomous stochastic 3D globally modified Navier–Stokes equations …

On a critical Leray-α model of turbulence

H Ali - Nonlinear Analysis: Real World Applications, 2013 - Elsevier
This paper aims to study a family of Leray-α models with periodic boundary conditions.
These models are good approximations for the Navier–Stokes equations. We focus our …