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It is unknown how the dynamics of ethylene glycol conveying SWCNTs and MWCNTs nanoparticles compare when there is a stratification of concentration and temperature such that the process by which an electric current travels past resistance and transforms some of its energy into heat is essential. The nondimensional governing equations were transformed via similarity transformation and solved numerically through Runge–Kutta 45 Fehlberg method. The computations have shown that the thermal convective term depleted the flow profile of SWCNTs and MWCNTs but boosted the velocity field and thermal diffusion. The induced electromagnetic force by the magnetic field and rising porosity term decrease the characteristic flow dimension. Finally, SWCNTs and MWCNTs are positively influenced by Ohmic magnetic dissipation and negatively influenced by radiation. The SWCNTs and MWCNTs are positively influenced by joule dissipation but negatively influenced by radiation. The thermal convective term reduces the flow profile of SWCNTs and MWCNTs but enhances the velocity field and thermal diffusion. Notably, the Nusselt number proportional to the heat transfer across the motion of SWCNTs nanofluid increases at the rate of 0.55466. Reverse is the case of MWCNTs nanofluid, where the same heat transfer rate decreases with a higher volume fraction at –0.7801. [ABSTRACT FROM AUTHOR]

This paper considers a boundary layer analysis on the effects of diffusion-thermo, heat absorption and homogeneous chemical reaction on magnetohydrodynamic flow of an incompressible, laminar chemically reacting micropolar fluid past a semi-infinite vertical porous plate is made numerically. The governing partial differential equations are solved numerically using the finite element method. The numerical results are compared and found to be in good agreement with previous results as special case of the present investigation. The effects of the various important parameters entering into the problem on the velocity, microrotation, temperature and concentration fields within the boundary layer are discussed and explained graphically. Also the effects of the pertinent parameters on the local Skin friction coefficient, wall Couple stress and rates of heat and mass transfer in terms of the local Nusselt and Sherwood numbers are presented numerically in tabular form. [ABSTRACT FROM AUTHOR]