Darcy-Forchheimer flow of nanofluid in a rotating frame

• Published in: International journal of numerical methods for heat & fluid flow Vol. 28; no. 12; pp. 2895 - 2915
• Main Authors: Hayat, Tasawar, Aziz, Arsalan, Muhammad, Taseer, Alsaedi, Ahmed
• Format: Journal Article
• Language: English
• Published: Bradford Emerald Publishing Limited 30.10.2018; Emerald Group Publishing Limited
• Subjects: Approximation; Brownian motion; Composite materials; Conductivity; Cooling; Dye dispersion; Fluids; Heat conductivity; Heat flux; Heat transfer; Investigations; Manufacturing; Nanofluids; Nanomaterials; Nanoparticles; Reynolds number; Rotation; Solutions; Three dimensional flow; Velocity; Viscoelasticity; Viscosity; Optimal homotopy analysis method (OHAM); Darcy-Forchheimer porous medium; Nanofluid; Flux conditions; Three-dimensional flow; Rotating frame
• ISSN: 0961-5539; 1758-6585
• DOI: 10.1108/HFF-01-2018-0021

Purpose The aim of this study is to elaborate three dimensional rotating flow of nanoliquid induced by a stretchable sheet subject to Darcy–Forchheimer porous space. Thermophoretic diffusion and random motion aspects are retained. Prescribed surface heat flux and prescribed surface mass flux conditions are implemented at stretchable surface. Convergent series solutions have been derived for velocities, temperature and concentration. Design/methodology/approach Optimal homotopy analysis method is implemented for the solution development. Findings The current solution demonstrates very good agreement with those of the previously published studies in the special cases of regular fluid and nanofluids. Graphical results are presented to investigate the influences of the titania and copper nanoparticle volume fractions and also the nodal/saddle indicative parameter on flow and heat transfer characteristics. Here, the thermal characteristics of hybrid nanofluid are found to be higher in comparison to the base fluid and fluid containing single nanoparticles, respectively. An important point to note is that the developed model can be used with great confidence to study the flow and heat transfer of hybrid nanofluids. Originality/value To the best of the authors’ knowledge, no such consideration has been given in the literature yet.