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2 International Journal of Applied Mechanics and Engineering

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Thermal diffusion and diffusion thermo effects on axi-symmetric boundary layer flow of nanofluid due to non-linear stretching sheet along the radial direction in presence of magnetic field

Ganga Upender Reddy, Janaiah Ch., Goud B. Shankar

International Journal of Applied Mechanics and Engineering

2024

Vol. 29, no. 3

32--46

This work presents the results of numerical research that was conducted on the flow of axisymmetric nanofluids through a nonlinearly stretched sheet in the radial direction while a magnetic field influence was present. This model of a nanofluid demonstrates the presence of both the Brownian motion and the thermophoretic nanoparticle diffusion effects simul-taneously. When calculating the flow, both the Dufour effect and the Soret effect are taken into consideration. The conservation of energy, species, and momentum is represented by the equations for this process. The transformation of partial differential equations can be achieved by utilizing similarity conversions. These equations take into account all of the thermophysical char-acteristics. Therefore, a feasible solution may be found in the Runge-Kutta approach. Graphic representations of the profiles for velocity, temperature, and concentration, along with evaluations of a few other parameters, are shown When compared to some of the earlier studies, the R-K code's validity is shown to be beyond question. Brownian motion((Nb) and Dufour effect(Du) lead to an increase in the temperature gradient. The results provide some insight into how the nanofluid is used in various com-mercial endeavors.

Chemical reaction and MHD flow for magnetic field effect on heat and mass transfer of fluid flow through a porous medium onto a moving vertical plate

Goud B. Shankar, Nandeppanavar Mahantesh M.

International Journal of Applied Mechanics and Engineering

2022

Vol. 27, no. 2

226--244

This article discusses the effect of heat and mass transfer in a boundary layer flow in the presence of a magnetic field of an electrically conducting and viscous fluid as it passes through a porous medium containing a heat source and a chemical reaction. By employing similarity variables, the governing equations are changed into nonlinear ordinary differential equations(ODEs). To solve the obtained equations numerically the Keller box method is used. Numerical and graphical representations of the results of different parameter values governing the flow system are given. The non-dimensional distributions of velocity, heat, and concentration are depicted graphically, while the Nusselt number, Sherwood number, and skin friction are determined numerically.