Effects of Soret, Hall and Ion-slip on mixed convection in an electrically conducting Casson fluid in a vertical channel

RamReddy, Ch.; Surender, O.; Rao, Ch. Venkata

doi:10.1515/nleng-2016-0016

Cited by 7 publications

(4 citation statements)

References 33 publications

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“…Shah et al [17] defned the fow of micropolar nanofuid in presence of thermally radiative rotating disks for investigation of mass fux and heat fux. Few more related studies on the said topic can be found from the references [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Oblique Flow of Shear Thinning Fluid through an Absorptive Radiative Medium with Hall Effect

Rana

Mahmud

Mehmood

et al. 2023

Journal of Mathematics

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The assumption of Hall current and ion slip is extremely crucial in several industrial and manufacturing processes, such as MHD (magneto hydrodynamics) accelerators, preservation coils, transmission lines, electric converters, and heating elements. Keeping this in view, the main aim of this article is to present a computational analysis of MHD ion Hall current with nonlinear thermal radiation on the sloping flow of shear thinning fluid through a porous medium on a stretching sheet that allows fluid suction and injection. The major mathematical modelling of governed problems is converted into a system of nonlinear ODEs (ordinary differential equations) by means of appropriate similarity relations. The influence of all relative physical parameters on velocity and temperature is studied through graphs and discussed in a detailed physical manner. Some beneficial mathematical quantities from the practical engineering and industrial point of view, such as skin friction factor and heat transfer rate at the porous surface, are calculated numerically and presented through graphs. It has been observed that flow may become unstable when M is small and the existence of a magnetic field and a porous ground contributes to a highly rough flow over the stretching surface. Suction is actually a resistive force which results in higher skin friction that is beneficial in controlling flow separation. Temperature of the fluid rises with stronger magnetic field and higher thermal radiation effects. The local heat flux decreases as the magnetic field strength and permeability parameter increase.

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Section: Introductionmentioning

confidence: 99%

Oblique Flow of Shear Thinning Fluid through an Absorptive Radiative Medium with Hall Effect

Rana

Mahmud

Mehmood

et al. 2023

Journal of Mathematics

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“…Some studies on the Hall and ion slip properties may be found in the literature. [30][31][32][33][34][35][36][37][38] Heat transfer phenomena become more informative in the field of biological characteristics particularly the analysis of biological tissues, their interaction with heat transfer, and thermodynamic structures of lifeblood. Also, it is more important in procedures such as oxygenation and hemodialysis, and malignancy cure.…”

Section: Introductionmentioning

confidence: 99%

Heat transport mechanism via ion-slip and Hall current in viscoplastic flow along a porous elastic sheet

Mehmood

Khan

Maraj

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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Heat transfer phenomena occur in most of the natural as well as engineering or manufacturing production plants. Such significant industrial processes utilize various modes for the transportation of heat and energy. In this veneration, the existing research is an attempt to explore heat transmission in a viscoplastic fluid under thermal radiation in the presence of ion and Hall current. The properties of Hall and ion current have enormous uses, particularly when measured in the presence of heat transferal phenomena with suction and injection. The most relevant examples of such mechanisms are fridge spirals, magnetohydrodynamics accelerators, and control generators. Also, the field of biomechanics under the influence of these characteristics is widely used especially in the flowing of blood and magnetic resonance imaging, which helps in producing magnetic resonance images of the thorax, abdomen, brain, kidney, etc. Furthermore, directed medication transport inside the human body needs a tough and heavy magnetic field. Hence, these vital applications of Hall and ion current cannot be overlooked. Transport phenomena are examined past a porous elastic sheet. The prevailing physical model is adapted as a non-linear system of ordinary differential equations by means of proper similarity alterations. The graphical representation shows the physical implication of all related constraints on the velocity and temperature distribution of viscoplastic fluids. Momentum, as well as thermal boundary thickness, is significantly affected by Hall currents and ion slip parameters in the presence of suction/injection phenomena. The temperature of the fluid rises for Eckert number and radiation parameter and also the skin friction coefficient at the surface rises with the suction parameter. An excellent match of numerical results correctly up to three decimal places are obtained for the limiting case when compared to the already published literature.

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“…Casson uid model is one of the non-Newtonian uids which models uids such as jelly, honey, fruit juices, soup, and blood etc. Casson uid is a shear-thinning uid exhibiting yield stress and which has in nite viscosity at a low shear rate and zero viscosity at the in nity shear rate; RamReddy et al [15] and Amanulla et al [16]. In other words, Casson uid behaves like a solid when yield stress is more than the shear stress but behaves like a liquid and ows when the yield stress is less than the shear stress.…”

Section: Introductionmentioning

confidence: 99%

Insight into the dynamics of non-Newtonian Casson fluid over a rotating non-uniform surface subject to Coriolis force

Oke

Mutuku

Kimathi

et al. 2020

Nonlinear Engineering

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Casson fluid model is the most accurate mathematical expression for investigating the dynamics of fluids with non-zero plastic dynamic viscosity like that of blood. Despite huge number of published articles on the transport phenomenon, there is no report on the increasing effects of the Coriolis force. This report presents the significance of increasing not only the Coriolis force and reducing plastic dynamic viscosity, but also the Prandtl number and buoyancy forces on the motion of non-Newtonian Casson fluid over the rotating non-uniform surface. The relevant body forces are derived and incorporated into the Navier-Stokes equations to obtain appropriate equations for the flow of Newtonian Casson fluid under the action of Coriolis force. The governing equations are non-dimensionalized using Blasius similarity variables to reduce the nonlinear partial differential equations to nonlinear ordinary differential equations. The resulting system of nonlinear ordinary differential equations is solved using the Runge-Kutta-Gills method with the Shooting technique, and the results depicted graphically. An increase in Coriolis force and non-Newtonian parameter decreases the velocity profile in the x-direction, causes a dual effect on the shear stress, increases the temperature profiles, and increases the velocity profile in the z-direction.

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Effects of Soret, Hall and Ion-slip on mixed convection in an electrically conducting Casson fluid in a vertical channel

Cited by 7 publications

References 33 publications

Oblique Flow of Shear Thinning Fluid through an Absorptive Radiative Medium with Hall Effect

Oblique Flow of Shear Thinning Fluid through an Absorptive Radiative Medium with Hall Effect

Heat transport mechanism via ion-slip and Hall current in viscoplastic flow along a porous elastic sheet

Insight into the dynamics of non-Newtonian Casson fluid over a rotating non-uniform surface subject to Coriolis force

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