Estimation of dual branch solutions for Homann flow of hybrid nanofluid towards biaxial shrinking surface

The purpose of utilizing hybrid nanofluids is to improve the heat transfer rate of the base fluid. An electro-magnetically conducting flow of zinc-oxide and multiwalled carbon nanotubes suspension submerged in engine oil is explored on a biaxially, planarly, and perpendicularly stretching/shrinking surface. Dual solutions, as well as linear stability of the considered problem are studied. The energy transport analysis includes the impact of thermal radiation, heat source/sink, and Ohmic heating. In addition, similarity ansatzes are used to develop ordinary differential equations. Bvp4c technique in Matlab is applied to find the numerical solutions. It is perceived that the magnetic field's motional electromagnetic force drives the system's energy transfer rate to rise, while velocities drop causing an increment in skin friction. Moreover, the stretching parameter along the x-axis gives an increasing behavior of velocity field for the first solution; however, it declines for the second so-lution. It is noted that radiation causes thermal transport to exalt. Moreover, the frictional drag along the x-axis is inclined due to an increment in stretching parameters but declines along the y-axis.

Automated summary

This study investigates the properties of an electro-magnetically conducting flow of zinc-oxide and multiwalled carbon nanotubes suspension submerged in engine oil on a biaxially, planarly, and perpendicularly stretching/shrinking surface. The results show that the motional electromagnetic force of the magnetic field drives the increase of energy transfer rate, while the decrease in velocity leads to an increase in skin friction.