Hybrid nanomaterial transportation and Lorentz effects in a permeable sinusoidal duct

To demonstrate the behavior of hybrid nanofluid in existence of MHD impact, new approach has been examined. Contours and 3D plots were two kinds of outcomes which present the variation of scrutinized variables. Selecting hybrid nanomaterial as testing fluid is owing to reduction of entropy with mixing of nanoparticles. The growth of permeability leads to higher nanomaterial velocity while entropy generation declines. To achieve lower Bejan number, strength of magnetic field should be declined. The growth of Ha (Hartmann) increases exergy destruction and force the thermal plume to vanish. At log(Ra) = 3, Da = 0.01, growth of Ha leads to 1.53% and 0.095% augmentation in Xd and Be, respectively while Nu declines about 0.24%. Augment of Da makes Nu to augments about 1.44% while Be and Xd reduces about 1.4% and 0.095%, respectively. Strength of vortex enhances about 60% with rise of permeability while it decreases about 37.5% with augment of Ha. Psi for higher Ra is 18.46% higher than that of lowest Ra. Temperature of element reduces about 19.04% and 54% with rise of Da and Ra but it augments about 29.4% with increase of Lorentz term. (c) 2021 Elsevier B.V. All rights reserved.

Automated summary

The behavior of hybrid nanofluid in the presence of MHD impact was studied, with results showing that reducing the strength of the magnetic field leads to a decrease in the Bejan number, while increasing the Hartmann number increases exergy destruction and causes the thermal plume to disappear. Increasing permeability results in higher nanomaterial velocity and reduced entropy generation. Additionally, increasing the Darcy and Rayleigh numbers leads to an increase in Nu, a decrease in Be and Xd, and a rise in temperature.