RSM-based sensitivity analysis of hybrid nanofluid in an enclosure filled with non-Darcy porous medium by using LBM method
K. Venkatadri, Hakan F. Öztop, V. Ramachandra Prasad, Settu Parthiban, Anwar Bég
Abstract
The emphasis of this study is the numerical analysis via D2Q9-based Lattice Boltzmann Method of free convection MHD non-Darcy flow in hybrid nanofluid (TiO2/Cu–water) occupying a differentially heated square enclosure. A key novelty of the work is the inclusion of a response surface methodology (RSM)-based sensitivity analysis. The current investigation has been done considering the variation in Rayleigh number (103 ≤ Ra ≤ 106), Darcy number (0.0001 ≤ Da ≤ 0.1), and Hartmann number (0 ≤ Ha ≤ 50). From RSM, high Darcy parameter, low volumetric fraction, and low Hartmann number are identified as the optimum functioning conditions for heat transfer rates.
Topics & Concepts
Darcy numberNanofluidHartmann numberLattice Boltzmann methodsEnclosureNatural convectionRayleigh numberMechanicsMaterials scienceMultiphysicsMagnetohydrodynamicsPorous mediumDarcy's lawHeat transferThermodynamicsNusselt numberPorosityPhysicsReynolds numberComputer scienceTurbulenceFinite element methodMagnetic fieldComposite materialTelecommunicationsQuantum mechanicsNanofluid Flow and Heat TransferLattice Boltzmann Simulation StudiesHeat Transfer Mechanisms