The Effect of the Vadasz Number on the Onset of Thermal Convection in Rotating Bidispersive Porous Media
Florinda Capone, Roberta De Luca
Abstract
The onset of thermal convection in uniformly rotating bidispersive horizontal porous layer, uniformly heated from below, is analyzed. A generalized Darcy equation for the macro-phase is considered to take the Vadasz number into account. It is proved that the presence of the Vadasz number can give rise to oscillatory motion at the loss of stability of thermal conduction solution.
Topics & Concepts
Porous mediumConvectionMechanicsThermal conductionThermalNatural convectionThermodynamicsDarcy numberTaylor numberPorosityPhysicsMaterials scienceRayleigh numberComposite materialNanofluid Flow and Heat TransferFluid Dynamics and Turbulent FlowsHeat and Mass Transfer in Porous Media