Radiative and dissipative flow of hybrid nanofluid between two coaxial cylinders: A comparative numerical study

Radiation in dissipative flow of hybrid nanofluid TiO₂+ Pb/water bounded between two coaxial cylinders is addressed. The hybrid nanomaterial is synthesized by adding nanoparticles lead and titanium dioxide TiO₂and Pb in water as conventional fluid. Geometrically the outer cylinder exhibits rotation and the inner cylinder fixed. Constant strength magnetic field is taken radially. Thermal radiation and viscous dissipation describe heat transfer analysis. Mathematical equations (continuity, momentum, and energy) are obtained via mathematical modeling. Bvp4c method is used for solutions development. Influences of flow and heat related parameters on skin friction, velocity, temperature and Nusselt number have been shown. Velocity of fluids (hybrid nanofluid and nanofluid) is controlled by higher magnetic parameter while temperature and skin friction intensifies with it. Higher nanoparticle volume fractions (for both nanoparticles) reduce velocity while skin friction and Nusselt number are intensified. Moreover, higher radiation parameter causes temperature drop. In comparative analysis, the effects of hybrid nanofluid TiO₂+ Pb/water are dominant when compared with nanofluid TiO₂+ water.