56 citations · 129 across the 9 of their papers we have counts for
10 papers
Gas-liquid stratified MHD flows in inclined rectangular ducts
Subham Pal, Ilya Barmak, Arseniy Parfenov +2
This study investigates fully developed stratified gas/liquid magnetohydrodynamic (MHD) flow of an electrically conducting liquid and a nonconducting gas in inclined rectangular du…
Two-phase stratified MHD flows in rectangular ducts
Subham Pal, Ilya Barmak, Arseniy Parfenov +2
The characteristics of two-phase stratified magnetohydrodynamic (MHD) flow in horizontal rectangular ducts are investigated for a system consisting of a conductive liquid and a non…
Two-phase stratified MHD flows in wide rectangular ducts: analytical and numerical solutions
Ilya Barmak, Subham Pal, Alexander Gelfgat +1
This study explores the effects of a non-conductive gas layer flowing concurrently with a conductive liquid on the two-phase flow characteristics in wide horizontal ducts under a c…
Instability of stratified air-water flows in circular pipes
Ilya Barmak, Alexander Gelfgat, Neima Brauner
This work deals with stability of two-phase stratified air-water flows in horizontal circular pipes. For this purpose, we performed a linear stability analysis, which considers all…
Flow of a shear-thinning fluid in a rectangular duct
Ilya Barmak, Davide Picchi, Alexander Gelfgat +1
We address the problem of steady laminar flow of a shear-thinning fluid in rectangular ducts, which is encountered in many systems, in particular, in microfluidic and biomedical de…
A numerical framework for linear stability analysis of two-phase stratified pipe flows
Ilya Barmak, Alexander Gelfgat, Neima Brauner
A numerical framework for rigorous linear stability analysis of two-phase stratified flows of two immiscible fluids in horizontal circular pipes is presented. For the first time, t…
Non-modal stability analysis of stratified two-phase channel flows
Ilya Barmak, Alexander Gelfgat, Amos Ullmann +1
The non-modal transient growth of perturbations in horizontal and inclined channel flows of two immiscible fluids is studied. 3D perturbations are examined in order to find the opt…
Stability of stratified two-phase channel flows of Newtonian/non-Newtonian shear-thinning fluids
Davide Picchi, Ilya Barmak, Amos Ullmann +1
Linear stability of horizontal and inclined stratified channel flows of Newtonian/non-Newtonian shear-thinning fluids is investigated with respect to all wavelength perturbations.…
Stability of stratified two-phase flows in inclined channels
Ilya Barmak, Alexander Gelfgat, Amos Ullmann +1
Linear stability of stratified gas-liquid and liquid-liquid plane-parallel flows in inclined channels is studied with respect to all wavenumber perturbations. The main objective is…
Stability of stratified two-phase flows in horizontal channels
Ilya Barmak, Alexander Gelfgat, Helena Vitoshkin +2
Linear stability of stratified two-phase flows in horizontal channels to arbitrary wavenumber disturbances is studied. The problem is reduced to Orr-Sommerfeld equations for the st…