Abstract
In this work, the impact of local thermal nonequilibrium (LTNE) state on the convective instability of non-Newtonian Jeffrey fluid in a porous matrix is analyzed using a two-field temperature model. In view of the linear stability concept, the onset conditions for the convective instability are obtained analytically in terms of critical Rayleigh-Darcy number RD,c. The results demonstrate that the stability of the system improves with interphase heat-transmit parameter NHT , while it decreases with the Jeffrey parameter λ and altered thermal conductivities ratio γ. Some existing outcomes in the literature are also recuperated as specific states from this examination.
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