Turbulent channel flow over an anisotropic porous wall–drag increase and reduction

ME Rosti, L Brandt, A Pinelli - Journal of Fluid Mechanics, 2018 - cambridge.org
The effect of the variations of the permeability tensor on the close-to-the-wall behaviour of a
turbulent channel flow bounded by porous walls is explored using a set of direct numerical …

Linear stability of a plane Couette–Poiseuille flow overlying a porous layer

A Samanta - International Journal of Multiphase Flow, 2020 - Elsevier
The modal and non-modal linear stability analyses of a three-dimensional plane Couette–
Poiseuille flow through a porous channel are studied based on the two-domain approach …

Stability of non-isothermal Poiseuille flow in a fluid overlying an anisotropic and inhomogeneous porous domain

A Khan, P Bera - Journal of Fluid Mechanics, 2022 - cambridge.org
A two-domain approach is used to investigate the thermal convection of Poiseuille flow in an
anisotropic and inhomogeneous porous domain underlying a fluid domain. The flow of the …

Role of slip on the linear stability of a liquid flow through a porous channel

A Samanta - Physics of Fluids, 2017 - pubs.aip.org
The linear stability of a liquid flow bounded by slippery and porous walls is studied for
infinitesimal disturbances of arbitrary wavenumbers. The Orr-Sommerfeld type eigenvalue …

Linear stability of Poiseuille flow of viscoelastic fluid in a porous medium

B MC, RB Kudenatti - Physics of Fluids, 2022 - pubs.aip.org
We study the instability of plane Poiseuille flow of the viscoelastic second-order fluid in a
homogeneous porous medium. The viscoelastic fluid between two parallel plates is driven …

Instability of a plane Poiseuille flow bounded between inhomogeneous anisotropic porous layers

S Karmakar, P Shukla - Thermal Science and Engineering Progress, 2023 - Elsevier
The linear stability analysis of a plane Poiseuille flow in a channel with anisotropic and
inhomogeneous porous layers is performed. The generalized Darcy equation, along with the …

Effect of anisotropy and inhomogeneity on the stability of liquid film flowing down a porous inclined plane

S Doomra, G Sharma, P Bera - Physics of Fluids, 2022 - pubs.aip.org
We examined the linear stability of a Newtonian liquid film flow past a porous inclined plane.
Falling film on inclined permeable planes displays three instability modes: surface, shear …

Instability, bifurcation and nonlinear dynamics of Poiseuille flow in fluid overlying an anisotropic and inhomogeneous porous domain

A Aleria, P Bera - International Journal of Non-Linear Mechanics, 2024 - Elsevier
The present study focuses on the finite amplitude analysis of Poiseuille flow in an
anisotropic and inhomogeneous porous domain that underlies a fluid domain. The nonlinear …

Nonmodal and modal analyses of a flow through inhomogeneous and anisotropic porous channel

A Samanta - International Journal of Multiphase Flow, 2022 - Elsevier
A study of nonmodal and modal stability analyses of a three-dimensional Poiseuille flow
through a channel is performed where the bounding walls are partially covered by …

Benchmark solution for the hydrodynamic stability of plane porous-Couette flow

BM Shankar, IS Shivakumara, J Kumar - Physics of Fluids, 2020 - pubs.aip.org
The hydrodynamic stability against small disturbances of plane Couette flow through an
incompressible fluid-saturated fixed porous medium between two parallel rigid plates is …