A horizontal porous layer with an impermeable adiabatic bottom wall and an impermeable isothermal top wall is studied. An impressed concentration gradient across the layer is assumed. A linear stability analysis is carried out both numerically and by a first-order perturbation method. It is shown that the combined effects of viscous dissipation and mass diffusion may lead to the instability of a basic horizontal uniform flow through the layer.
A. Barletta, D. A. Nield (2010). Double-diffusive convection instability and viscous dissipation in a fluid saturated porous layer with horizontal forced flow. NEW YORK : Engineering Conferences International.
Double-diffusive convection instability and viscous dissipation in a fluid saturated porous layer with horizontal forced flow
BARLETTA, ANTONIO;
2010
Abstract
A horizontal porous layer with an impermeable adiabatic bottom wall and an impermeable isothermal top wall is studied. An impressed concentration gradient across the layer is assumed. A linear stability analysis is carried out both numerically and by a first-order perturbation method. It is shown that the combined effects of viscous dissipation and mass diffusion may lead to the instability of a basic horizontal uniform flow through the layer.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
