THERMOSOLUTAL CONVECTION IN A BIDISPERSE POROUS MEDIUM WITH CHEMICAL REACTION EFFECT AND RELATIVELY LARGE MACROPORES
Alaa Jabbar Badday, Akil J. Harfash
Abstract
The model of double diffusive convection in a bidisperse porous medium was examined. Brinkman effects and slip were allowed to be used in macropores. In the micropores, only the Darcy effects are held. In equilibrium, the concentration of solutes is thought to be a linear function of temperature. We performed both a linear and a nonlinear stability analysis, with a particular emphasis on the impact of slip boundary conditions on the system's instability and stability. After deciding when the instability started, we determined the critical Rayleigh number as a function of the slip coefficient. Numerical findings for stability/instability thresholds were also presented.
Topics & Concepts
InstabilityPorous mediumMacroporeSlip (aerodynamics)MechanicsConvectionMaterials scienceThermodynamicsNonlinear systemLinear stabilityPorosityRayleigh numberNatural convectionChemistryPhysicsComposite materialBiochemistryQuantum mechanicsMesoporous materialCatalysisNanofluid Flow and Heat TransferLattice Boltzmann Simulation StudiesHeat and Mass Transfer in Porous Media