Significance of nanoparticles aggregation and Coriolis force on the dynamics of Prandtl nanofluid: The case of rotating flow

• Published in: Chinese journal of physics (Taipei) Vol. 79; pp. 264 - 274
• Main Authors: Awan, Aziz Ullah, Majeed, Sonia, Ali, Bagh, Ali, Liaqat
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2022
• Subjects: Aggregation of nano particles; Nano fluid; Non-Newtonian fluid; Porous medium; Nano fluid; Aggregation of nano particles; Porous medium; Non-Newtonian fluid
• ISSN: 0577-9073
• DOI: 10.1016/j.cjph.2022.07.008

A comparative study is provided by this article with rotational Prandtl host fluid flux of aggregated nano particles and non aggregated nano particles on linear stretching surface. Along with the chemical species diffusion, Arrhenius activation energy is examined. The nano particles thats are playing vital role in modern technology like heat exchange, electronics and material sciences are incorporated because of enhancing heat transmission. The current analysis has significant applications in rolling and manufacturing of polymer sheet, lubrication processes, crystal growing, polymer industry, biomedical and polymer industry. By applying similarity transformation to mathematical formulation based upon conservation laws yielded a related set of differential equations. For obtaining the numerical solution of non linear problem, Runge Kutta technique is employed and listed in platform of MATLAB. The goal of this study is to illustrate the comprehensive analysis of repercussions of parameters on heat, velocity and nanoparticles concentration via graphical and numerical outcomes is computed. Both velocities (f1′ and f2) reduced against amplified value of β, λ and Fr but, have increasing behavior for α1 and α2. Heat distribution is rise with growing values of Fr and λ but, reduce in case of α1 (Prandtl fluid parameter) and α2 (elastic parameter) and concentration of nano particles is higher for λ and E but, lessen for δ. It is observed that the increment and decrement in values of f1′, f2, θ, ϕ by impact of variation in values of parameters is slightly fast in non aggregated phase as compared to aggregated phase. On linearly extending surface, Nu and friction factor variational patterns are numerically calculated. [Display omitted] •Prandtl nanofluid subject to Lorentz and Coriolis forces is explored.•Both velocities decreased against the growing value of rotation.•The primary velocity is higher in the non-aggregated phase.•The aggregated case enhances the fluid temperature.