..., Darcy number, Hartmann number and Hall current parameter, are systematically analysed through streamlines, temperature contours, nanoparticle volume fraction distributions and microorganism isoconcentration profiles. Findings The Hall current alters flow patterns by increasing velocity and splitting...

... Alloys Slip boundary condition Microchannel Nonlinear radiation Darcy number u = axial velocity (m/s); y = transversal coordinate (m); U = dimensionless velocity; T = temperature of the fluid (K); T_a...

... number decreases the wake length decreases and the separation is delayed. Originality/value – There is no published research in the literature about flow around and into porous diamond cylinders to study the effect of important parameters, such as apex angle, Darcy number, and Reynolds number...