Flow and heat transfer analysis of elastoviscoplastic generalized non-Newtonian fluid with hybrid nano structures and dust particles

The Oldroyd-B model, Maxwell and Jeffrey models which are generalized non-Newtonian rheological models are used for the investigation of thermal enhancement in the presence of dust and hybrid nanoparticles. The governing models for fluid and solid phase are solved numerically via shooting method. The convergence and mesh free analysis has been carried out, Nusselt number and shear stress are analyzed for three fluid models (Oldroyd, Maxwell and Jeffrey). It is observed that memory effects in Oldroyd-B hybrid nanofluid are stronger than Maxwell and Jeffrey's hybrid nanofluid. The thickness of momentum boundary layer region can be reduced by increasing Deborah number that characterizes the relaxation time. Viscous dissipation phenomenon has appeared less significant in Jeffrey fluid comparatively. The transport rate of heat energy through Jeffrey hybrid nanofluid is higher than both the Maxwell and Oldroyd model.