Unsteady flow due to a disk executing non-torsional oscillation and a Newtonian fluid at infinity rotating about non-coaxial axes

Effect of magnetic field on the time-dependent flow due to a disk with non-torsional oscillation and a Newtonian fluid at infinity rotating about distinct axes

“…In this study, the emphasis is given to the effect of applied magnetic field. The results found in the absence of magnetic field [12] can be recovered by setting N ¼ 0. As expected, the application of the magnetic field results in the appearance of a Lorentz force which resists the flow.…”

“…After the pioneering research of Courier [1] that studied the steady flow caused by the rotation of a disk and a Newtonian fluid at infinity about two parallel vertical axes, the extensions under the influence of different physical conditions of this type of flow to the case of a disk with nontorsional oscillation in its own plane were carried out by several authors [2][3][4][5][6][7][8][9][10][11][12]. Kasiviswanathan and Rao [2], Hayat et al [3] and Guria et al [4] studied the periodic flow occurred by the oscillation of a porous disk while the porous disk and a Newtonian fluid at infinity are rotating at the same speed.…”

“…Wang and Wu [11] obtained a numerical solution for the flow of a third-order fluid with slip condition in the case of a disk subjected to uniform suction or blowing. Apart from the above papers, Ersoy [12] considered a different initial flow and studied the unsteady flow occurred after the disk performs non-torsional oscillation in its own plane while the disk and the fluid at infinity are initially rotating at the same speed about non-concentric axes.…”

“…The goal of this paper is to extend the analysis in [12] to the magnetohydrodynamic flow. Such a flow model has an application in the areas of earthquake and ocean engineering.…”

Analysis of Heat Transfer in Non-Coaxial Rotation of Newtonian Carbon Nanofluid Flow with Magnetohydrodynamics and Porosity Effects

“…As the extension of the previous study, the heat and mass transfer effects (double diffusion) were considered by Mohamad et al [41] and followed by Mohamad et al [42] investigating porosity effect in double diffusion flow of MHD fluid. Ersoy [43] imposed a disk with non-torsional oscillation to study the convective non-coaxial rotating flow for a Newtonian fluid. Mohamad et al [44,45] worked on similar study considering the second grade fluid and Rafiq et al [46] concerning the Casson fluid model.…”