Rayleigh–Bénard Instability of an Ellis Fluid Saturated Porous Channel with an Isoflux Boundary
نویسندگان
چکیده
The onset of the thermal instability is investigated in a porous channel with plane parallel boundaries saturated by non–Newtonian shear–thinning fluid and subject to horizontal throughflow. Ellis model adopted describe rheology. Both are assumed be impermeable. A uniform heat flux supplied through lower boundary, while upper boundary kept at temperature. Such an asymmetric setup conditions analysed via numerical solution linear stability eigenvalue problem. analysis developed for three–dimensional normal modes perturbation showing that transverse most unstable. destabilising effect character also demonstrated as compared behaviour displayed, same flow configuration, Newtonian fluid.
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ژورنال
عنوان ژورنال: Fluids
سال: 2021
ISSN: ['2311-5521']
DOI: https://doi.org/10.3390/fluids6120450