[HTML][HTML] Nonlinear large-scale perturbations of steady thermal convective dynamo regimes in a plane layer of electrically conducting fluid rotating about the vertical …

SR Jeyabalan, R Chertovskih, S Gama, V Zheligovsky - Mathematics, 2022 - mdpi.com
Mathematics | Free Full-Text | Nonlinear Large-Scale Perturbations of Steady Thermal
Convective Dynamo Regimes in a Plane Layer of Electrically Conducting Fluid Rotating about …

Magnetic field generation by pointwise zero-helicity three-dimensional steady flow of an incompressible electrically conducting fluid

A Rasskazov, R Chertovskih, V Zheligovsky - Physical Review E, 2018 - APS
We introduce six families of three-dimensional space-periodic steady solenoidal flows,
whose kinetic helicity density is zero at any point. Four families are analytically defined …

Homogenization of trajectory statistical solutions for the 3D incompressible micropolar fluids with rapidly oscillating terms

H Yang, X Han, C Zhao - Mathematics, 2022 - mdpi.com
This article studies the 3D incompressible micropolar fluids with rapidly oscillating terms.
The authors prove that the trajectory statistical solutions of the oscillating fluids converge to …

A Multiscale Statistical Analysis of Rough Surfaces and Applications to Tribology

FM Borodich, A Pepelyshev, X Jin - Mathematics, 2024 - mdpi.com
Mathematical modelling of surface roughness is of significant interest for a variety of modern
applications, including, but not limited to, tribology and optics. The most popular approaches …

LINEAR PERTURBATIONS OF THE BLOCH TYPE OF SPACE-PERIODIC MAGNETOHYDRODYNAMIC STEADY STATES. I. MATHEMATICAL PRELIMINARIES

RA Chertovskih, VA Zheligovsky - Russian Journal of Earth …, 2023 - journals.rcsi.science
We consider Bloch eigenmodes in three linear stability problems: the kinematic dynamo
problem, the hydrodynamic and MHD stability problem for steady space-periodic flows and …

Negative magnetic eddy diffusivities from the test-field method and multiscale stability theory

A Andrievsky, A Brandenburg, A Noullez… - The Astrophysical …, 2015 - iopscience.iop.org
The generation of a large-scale magnetic field in the kinematic regime in the absence of an
α-effect is investigated by following two different approaches: the test-field method and the …

Computation of Kinematic and Magnetic α-Effect and Eddy Diffusivity Tensors by Padé Approximation

SMA Gama, R Chertovskih, V Zheligovsky - Fluids, 2019 - mdpi.com
We present examples of Padé approximations of the α-effect and eddy viscosity/diffusivity
tensors in various flows. Expressions for the tensors derived in the framework of the …

What makes a steady flow to favour kinematic magnetic field generation: A statistical analysis

FS de Almeida, R Chertovskih, S Gama… - arXiv preprint arXiv …, 2024 - arxiv.org
To advance our understanding of the magnetohydrodynamic (MHD) processes in liquid
metals, in this paper we propose an approach combining the classical methods in the …

Higher-Order Blended Compact Difference Scheme on Nonuniform Grids for the 3D Steady Convection-Diffusion Equation

T Ma, B Lan, Y Ge, L Wu - Axioms, 2023 - mdpi.com
This paper proposes a higher-order blended compact difference (BCD) scheme on
nonuniform grids for solving the three-dimensional (3D) convection–diffusion equation with …

On kinematic generation of the magnetic modes of bloch type

VA Zheligovsky, RA Chertovskih - Izvestiya, Physics of the Solid Earth, 2020 - Springer
Kinematic generation of electrically conductive fluid by space-periodic flow is considered.
The generated magnetic modes have a form of a product of three-dimensional field having …