Thermal radiation and mass transfer analysis in oscillatory Magnetohydrodynamic Couette flow of a dusty fluid: applications in biomedical systems
Gohar Ali, Dolat Khan, Zeeshan Ali, Nwrh M Albqmi, Rashid JanAbstract
BACKGROUND
The present study aims to explore the oscillatory magnetohydrodynamic Couette flow of a two‐phase dusty fluid between two parallel plates, accounting for temperature variation on the walls, thermal radiation, and momentum, heat, and mass transfer between phases.
RESULTS
The governing equations for fluid and dust phases were derived and solved using the Poincaré‐Lighthill perturbation technique. The results reveal significant effects of thermal radiation on heat transfer, as the Nusselt number increases from 0.09397 to 2.55094 by increasing the radiation parameter from 5 to 10, whereas an increase in Prandtl number decreases heat transfer by decreasing thermal diffusivity. The results also reveal an increase in skin friction due to an increase in buoyancy parameters, from 0.15287 to 0.21439 by increasing the thermal Grashof number, whereas stronger magnetic field effects reduced skin friction from 0.15287 to 0.03604 due to the damping effect of the Lorentz force.
CONCLUSION
The velocity and temperature fields were enhanced by radiation, whereas magnetic field strength and dust‐fluid interaction reduced flow intensity through drag and electromagnetic resistance. The interphase heat and mass transfer significantly affected the thermal and concentration boundary layers of both phases. These findings demonstrate the coupled influence of radiative, magnetic, and interphase transport mechanisms in oscillatory dusty fluid flow and highlight the relevance of the model to chemically reactive transport, particulate processing, biomedical systems, and thermal management applications. © 2026 Society of Chemical Industry (SCI).