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.
Double-diffusive convection instability and viscous dissipation in a fluid saturated porous layer with horizontal forced flow / A. Barletta; D. A. Nield. - ELETTRONICO. - (2010), pp. 1-6. (Intervento presentato al convegno Third International Conference on Porous Media and its Applications in Science, Engineering and Industry tenutosi a Montecatini, Pistoia, Italia nel 20-25 Giugno 2010).
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.