Tensor-product-Thomas elliptic solver for liquid-metal magnetohydrodynamics

D Krasnov, A Akhtari, O Zikanov… - Journal of Computational …, 2023 - Elsevier
A new approach to numerical simulation of magnetohydrodynamic flows of liquid metals is
presented. It combines the conservative finite-difference discretization with a tensor-product …

Linear instability of the lid-driven flow in a cubic cavity

AY Gelfgat - Theoretical and Computational Fluid Dynamics, 2019 - Springer
Primary instability of the lid-driven flow in a cube is studied by a linear stability approach.
Two cases, in which the lid moves parallel to the cube sidewall or parallel to the diagonal …

On laminar natural convection inside multi-layered spherical shells

Y Gulberg, Y Feldman - International Journal of Heat and Mass Transfer, 2015 - Elsevier
Laminar natural convection flow inside multi-layered spherical shells with internal hot and
external cold boundaries was investigated. Direct numerical simulations (DNS), which were …

[HTML][HTML] Direct forcing immersed boundary method for electro-thermo-buoyant flows in enclosures

M Kumar, Y Mayan, Y Feldman - Case Studies in Thermal Engineering, 2024 - Elsevier
This study investigates electro-hydrodynamic (EHD) and electro-thermo-hydrodynamic
(ETHD) phenomena in dielectric liquids, and focusses on charge injection as a source of …

Order-of-magnitude speedup for steady states and traveling waves via Stokes preconditioning in Channelflow and Openpipeflow

LS Tuckerman, J Langham, A Willis - Computational Modelling of …, 2019 - Springer
Steady states and traveling waves play a fundamental role in understanding hydrodynamic
problems. Even when unstable, these states provide the bifurcation-theoretic explanation for …

Computational modeling of magnetoconvection: effects of discretization method, grid refinement and grid stretching

AY Gelfgat, O Zikanov - Computers & Fluids, 2018 - Elsevier
The problem of natural convection in a laterally heated three-dimensional cubic cavity under
the action of an externally imposed magnetic field is revisited. Flows at the Rayleigh number …

Semi-implicit direct forcing immersed boundary method for incompressible viscous thermal flow problems: a Schur complement approach

Y Feldman - International Journal of Heat and Mass Transfer, 2018 - Elsevier
An extended immersed boundary method utilizing a semi-implicit direct forcing approach for
the simulation of confined incompressible viscous thermal flow problems is presented. The …

Instability characteristics of a highly separated natural convection flow: Configuration of a tandem of cold and hot horizontally oriented cylinders placed within a cold …

E Zemach, A Spizzichino, Y Feldman - International Journal of Thermal …, 2021 - Elsevier
The study numerically investigated the instability characteristics of a 3D highly separated
natural convection flow developing within a cold cubic enclosure in the presence of a …

Time-dependent modeling of oscillatory instability of three-dimensional natural convection of air in a laterally heated cubic box

AY Gelfgat - Theoretical and Computational Fluid Dynamics, 2017 - Springer
Transition from steady to oscillatory buoyancy convection of air in a laterally heated cubic
box is studied numerically by straight-forward time integration of Boussinesq equations …

Instability of natural convection in a laterally heated cube with perfectly conducting horizontal boundaries

AY Gelfgat - Theoretical and Computational Fluid Dynamics, 2020 - Springer
Oscillatory instability of buoyancy convection in a laterally heated cube with perfectly
thermally conducting horizontal boundaries is studied. The effect of the spanwise …