Mixed convection stagnation point flow of the blood based hybrid nanofluid around a rotating sphere

• Published in: Scientific reports 2021-04, Vol.11 (1), p.7460-7460, Article 7460
• Main Authors: Gul, Taza, Ali, Basit, Alghamdi, Wajdi, Nasir, Saleem, Saeed, Anwar, Kumam, Poom, Mukhtar, Safyan, Kumam, Wiyada, Jawad, Muhammad
• Format: Article
• Language: English
• Subjects: 639/4077; 639/705; 639/766; 639/925; Blood; Boundary conditions; Brownian motion; Convection; Differential equations; Flow velocity; Heat conductivity; Heat transport; Humanities and Social Sciences; Magnetic fields; multidisciplinary; Nanoparticles; Partial differential equations; Science; Science (multidisciplinary); Thermal conductivity; Titanium dioxide; Velocity
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-021-86868-x

In this new world of fluid technologies, hybrid nanofluid has become a productive subject of research among scientists for its potential thermal features and abilities, which provides an excellent result as compared to nanofluids in growing the rate of heat transport. Our purpose here is to introduce the substantial influences of magnetic field on 2D, time-dependent and stagnation point inviscid flow of couple stress hybrid nanofluid around a rotating sphere with base fluid is pure blood, TiO 2 and Ag as the nanoparticles. To translate the governing system of partial differential equations and the boundary conditions relevant for computation, some suitable transformations are implemented. To obtain the analytical estimations for the corresponding system of differential expression, the innovative Optimal Homotopy Analysis Method is used. The characteristics of hybrid nanofluid flow patterns, including temperature, velocity and concentration profiles are simulated and analyzed in detail due to the variation in the evolving variables. Detailed research is also performed to investigate the influences of relevant constraints on the rates, momentum and heat transport for both TiO 2 + Ag + B l o o d and TiO 2 + B l o o d . One of the many outcomes of this analysis, it is observed that increasing the magnetic factor will decelerate the hybrid nanofluid flow velocity and improve the temperature profile. It may also be demonstrated that by increasing the Brownian motion factor, significant improvement can be made in the concentration field of hybrid nanofluid. The increase in the nanoparticle volume fraction from 0.01 to 0.02 in the case of the hybrid nanofluid enhances the thermal conductivity from 5.8 to 11.947% and for the same value of the nanoparticle volume fraction in the case of nanofluid enhance the thermal conductivity from 2.576 to 5.197%.