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 current research expounds numerical investigation of key parameters effects, namely porosity ( ε= 0.4, 0.6, 0.7 and 0.8), Reynolds number Re = 100, 200, 400 600) Eckert Ec 0, 1, 5 10) on the forced convective laminar flow heat transfer through a horizontal porous channel filled with metal foam structure impregnated paraffin as phase change material (PCM). Darcy-Brinkman-Forchheimer model un...

The small open area available at the slots of underdrains in pressurized granular bed filters for drip irrigation implies: (1) existence a region with non-uniform flow, and (2) local values modified particle Reynolds number >500. These flow conditions may disagree those accepted as valid common pressure drop-flow rate correlations proposed packed beds. Here, we carried out detailed computati...

We propose and analyze a new mixed finite element method for the nonlinear problem given by coupling of steady Brinkman–Forchheimer double-diffusion equations. Besides velocity, temperature, concentration, our approach introduces velocity gradient, pseudostress tensor, pair vectors involving temperature/concentration, its gradient as further unknowns. As consequence, we obtain fully variational...