The present paper reports on an analytical and numerical study of combined Soret Dufour effects thermosolutal convection in a horizontal porous cavity saturated with electrically conducting binary fluid under magnetic field. walls the system are subject to vertical uniform fluxes heat mass, whereas assumed be adiabatic impermeable. main governing parameters problem Rayleigh, Hartmann, Soret, Le...

A stagnant film model of the effects of thermosolutal convection on free dendritic growth of alloys is developed, and its predictions are compared to available earth-based experimental data for succinonitrile–acetone alloys. It is found that the convection model gives excellent agreement with the measured dendrite tip velocities and radii for low solute concentrations. However, at higher solute...

A stagnant film model of the effects of thermosolutal convection on free dendritic growth of alloys is developed, and its predictions are compared to available earth-based experimental data for succinonitrileacetone alloys. It is found that the convection model gives excellent agreement with the measured dendrite tip velocities and radii for low solute concentrations. However, at higher solute ...

Double-diffusive convection in a micropolar fluid layer heated and soluted from below in the presence of uniform rotation saturating a porous medium is theoretically investigated. An exact solution is obtained for a flat fluid layer contained between two free boundaries. To study the onset of convection, a linear stability analysis theory and normal mode analysis method have been used. For the ...

Abstract Double-diffusive systems, such as thermosolutal convection, in which the density depends on two components that diffuse at different rates, are prone to both steady and oscillatory instabilities. Such systems can evolve into layered states, components, also density, adopt a “staircase” profile. Turbulent transport is enhanced significantly state. Here we exploit an analogy between magn...