Sumathi KArunachalam TAiswarya S2020-08-282020-08-2820170973-3868https://www.researchgate.net/publication/328982059_LINEAR_STABILITY_OF_FREE_CONVECTIVE_SUPERPOSED_FLUID_AND_POROUS_LAYERhttps://dspace.psgrkcw.com/handle/123456789/1196A stability analysis of an unsteady natural convection of saturated incompressible fluid/porous interface is carried out using one domain approach. The momentum transfer in porous medium has been described by the Brinkman-extended Darcy model. Using normal mode analysis the resulting eigenvalue problem is solved by applying method of small oscillations with wave number as a perturbation parameter to get a closed form solution. The influence of various parameters like Grashof number, Prandtl number, Darcy number, depth ratio and porosity on stability characteristics of the flow is analyzed numericallyenNatural convectionsuperposed fluid – porous layermethod of small oscillationsLinear StabilityArticle