Heat and mass flux through a Reiner–Rivlin nanofluid flow past a spinning stretching disc: Cattaneo–Christov model

• Published in: Scientific reports 2022-08, Vol.12 (1), p.14468-24, Article 14468
• Main Authors: Moatimid, Galal M., Mohamed, Mona A. A., Elagamy, Khaled
• Format: Article
• Language: English
• Subjects: 631/57; 639/301; 639/705; 639/925; Differential equations; Diffusion; Heat transfer; Hot Temperature; Humanities and Social Sciences; Models, Theoretical; Motion; multidisciplinary; Nanoparticles; Ordinary differential equations; Partial differential equations; Physical characteristics; Science; Science (multidisciplinary); Temperature
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-022-18609-7

The current work scrutinizes a non-Newtonian nanofluid free convective flow induced by a rotating stretchable disc. The examination surveys the Stefan blowing and Cattaneo–Christov mass and heat fluxes, as a precise illustrative model. The innovative aspects of the ongoing project include the analysis of the border sheet nanofluid flow near a revolving disc through thermophoresis, Reiner–Rivlin prototype features, and random nanoparticle motion. The Reiner–Rivlin non-Newtonian model is considered together with the effect of an unvarying axial magnetic strength. The constitutive formulae of a Reiner–Rivlin liquid have been reproduced in the cylindrical coordinates. Through implementing the applicable relationship transformations, the controlling partial differential equations are transferred to ordinary differential equations (ODE). This procedure yields a group of coupled nonlinear ordinary differential equations in relation to speed, heat, and nanoparticle concentration profiles that are impacted by several physical characteristics. These equations are analyzed by using the homotopy perturbation method (HPM). Due to the analytical solution given by HPM, the current work enables us to take the infinity of the layer as a parameter of the problem and discuss its variation in the obtained distributions. Consequently, a physical significant graphical visualization of the data is emphasized. The rates of mass and temperature transmission are examined to understand if any of the relevant parameters may improve these rates. Additionally, the Stefan blowing causes extra particles diffusion, which enhances heat transfer and raises the nanoparticles concentration and could be useful in some medical therapies. Furthermore, the stretching of the rotating disc is concluded, which improves the fluid heat transfer.