Symmetrical solutions of hybrid nanofluid stagnation-point flow in a porous medium. (January 2022)

• Record Type: Journal Article
• Authors: Waini, Iskandar; Ishak, Anuar; Pop, Ioan
• Is Part Of: International communications in heat and mass transfer. Volume 130(2022)
• Publication Date: 2022-01
• Subjects: Hybrid nanofluid -- Non-axisymmetric -- Stagnation point -- Porous medium -- Symmetrical solutions; Heat -- Transmission -- Periodicals; Mass transfer -- Periodicals; Chaleur -- Transmission -- Périodiques; Transfert de masse -- Périodiques; Heat -- Transmission; Mass transfer; Periodicals; 621.4022
• DOI: 10.1016/j.icheatmasstransfer.2021.105804
• Languages: English
• ISSNs: 0735-1933

Abstract

Abstract: This current study considers the hybrid nanofluid flow on a non-axisymmetric stagnation point region of a flat plate in a porous medium. By adopting the similarity variables, the equations that govern the flow are adapted to the similarity equations and then be solved by utilizing the bvp4c solver. Some samples of the friction factor and heat transfer rate, as well as the velocities and the temperature profiles, are presented. It is interesting to note that the friction factor for both x and y directions exhibits the symmetries pattern. Furthermore, the outcomes show that the friction factor increase with the rising of the hybrid nanoparticles and the porous medium parameter. Meanwhile, hybrid nanoparticles led to enhance the heat transfer rate but the porous medium parameter shows the opposite effect. Moreover, the value of the shear-to-strain-rate ratio where the occurrence of zero friction on the wall is also determined. Highlights: The hybrid nanofluid flow on a non-axisymmetric stagnation point region of a flat plate in a porous medium is studied. The governing equations are transformed into the similarity equations and then solved using the bvp4c function. The outcomes show that the friction factor increase with the rising of the hybrid nanoparticles and the porous medium parameter. Hybrid nanoparticles led to enhance the heat transfer rate but the porous medium parameter shows the opposite effect.