Abstract The onset of thermal convection in an anisotropic horizontal porous layer heated from below and rotating about vertical axis, under local non-equilibrium hypothesis is studied. Linear nonlinear stability analysis the conduction solution performed. Coincidence between linear instability global thresholds with respect to L 2 —norm proved. Article Highlights A necessary sufficient conditi...

This article presents a numerical study of the doublediffusive mixed convection in a vertical channel filled with porous medium by using non-equilibrium model. The flow is assumed fully developed, uni-directional and steady state. The controlling parameters are thermal Rayleigh number (RaT ), Darcy number (Da), Forchheimer number (F), buoyancy ratio (N), inter phase heat transfer coefficient (H...

This paper aims to examine impacts of Cattaneo–Christov heat flux on the magnetohydrodynamic convective transport within irregular containers in presence thermal radiation. Both magnetic field and flow domain are slant with inclination angles Ω γ, respectively. The worked fluid is consisting water (H2O) Al2O3-Cu hybrid nanoparticles. enclosures filled a porous medium, local nonequilibrium (LTNE...

The major finding of this paper is studying the stability a double diffusive convection using so-called local thermal non-equilibrium (LTNE) effects. A new combined model that we call it Brinkmann-Forchheimer was considered in inquiry. Using both linear and non-linear analysis, used saturated rotating porous layer when fluid solid phases are not state non-equilibrium. In addition, discussed sev...

The phenomenon of heat flux bifurcation inside a porous medium is analyzed by studying the convective heat transfer process within a channel partially filled with a porous medium under Local Thermal NonEquilibrium (LTNE) conditions. Either the thermal dispersion effect or the inertial effect is considered in the physical model. Exact solutions are derived for both the fluid and solid temperatur...

Purpose – The purpose of this paper is to analytically perform gaseous slip flow and heat transfer analysis within a parallel-plate microchannel partially filled with a centered porous medium under local thermal non-equilibrium (LTNE) condition. Heat transfer of gaseous flow in a porous microchannel is analytically studied. Energy communication at the porous-fluid interface is considered by two...

A numerical investigation on Latent Heat Thermal Energy Storage System (LHTESS) based an aluminum foam totally filled with phase change material (PCM) is accomplished. The PCM used a pure paraffin wax melting over range of temperature and high latent heat fusion. LHTESS geometry under vertical shell tube. corrugated internal surface the hollow cylinder assumed at constant above temperature. oth...

Forced convection of heat in a two-dimensional channel, partially filled by a porous insert is considered. This system is assumed under fully developed conditions and constant wall heat flux. Further, the fluid and solid phases can feature internal heat generation (exothermicity) and consumption (endothermicity). Analytical solutions are developed for the solid and fluid temperature fields by a...