Non-linear radiative heat transfer analysis during the flow of Carreau nanofluid due to wedge-geometry: A revised model. (March 2019)

• Record Type: Journal Article
• Authors: Hashim, ; Khan, Masood; Ul Huda, Noor; Hamid, Aamir
• Is Part Of: International journal of heat and mass transfer. Volume 131(2019)
• Page Start: 1022
• Page End: 1031
• Publication Date: 2019-03
• Subjects: Buongiorno's model -- Nanoparticles -- Carreau model -- Heat transfer -- Thermal radiation -- Wedge geometry; Heat -- Transmission -- Periodicals; Mass transfer -- Periodicals; Chaleur -- Transmission -- Périodiques; Transfert de masse -- Périodiques; Electronic journals; 621.4022
• DOI: 10.1016/j.ijheatmasstransfer.2018.10.140
• Languages: English
• ISSNs: 0017-9310

Abstract

Graphical abstract: The physical model is intended to portray the schematic of the problem and behaviour of skin friction and Nusselt number. Highlights: The review describe the physical properties of Carreau nanofluids. Flow past a wedge shaped geometry is studied. Heat and mass transfer characteristics are further analyzed. Effect of thermal radiation on heat transfer rate are investigated. Numerical solutions are computed via collocated numerical method. Abstract: In this article, an innovative revised Buongiorno's model is employed to investigate the flow of Carreau nanofluids generated by a wedge-shaped geometry. Moreover, heat and mass transfer characteristics are explored under the influence of non-linear thermal radiation. At first, the developed flow equations are made dimensionless via suitable transformations and then resulting set of nonlinear ordinary differential equations are solved numerically using built-in MATLAB solver bvp4c. It is observed that the solution of current flow problem is highly dependent on the contribution of several physical parameters like Weissenberg number, power-law index, wedge angle parameter, velocity ratio parameter, non-linear radiation parameter, suction parameter, Brownian motion and thermophoresis parameters, Lewis and Prandtl numbers. Detailed analysis for the novel results of dimensionless velocity, temperature and nanoparticles concentration with in the boundary layer region is exhibited graphically. The core physical implication of the computed results is that the thermal boundary layer is thinned by higher radiation parameter. This study reveals that an enhancement in the local Nusselt number is noted with higher temperature ratio parameter. On the other hand, an incremental skin friction ate the wall can be achieved by growing values of power-law index. The obtained data is distinguished with earlier studies and admirable agreement has been noted.