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Bioconvective Micropolar Nanofluid Flow Over an Inclined Stretching Surface in the Presence of Variable Magnetic Field, Viscous Dissipation and Effective Prandtl Number
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Bioconvective Micropolar Nanofluid Flow Over an Inclined Stretching Surface in the Presence of Variable Magnetic Field, Viscous Dissipation and Effective Prandtl Number
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Journal Article
Bioconvective Micropolar Nanofluid Flow Over an Inclined Stretching Surface in the Presence of Variable Magnetic Field, Viscous Dissipation and Effective Prandtl Number
2026
Overview
We report on the impact of effective Prandtl number, variable magnetic field and viscous dissipation on MHD bioconvective micropolar nanofluid flow over an inclined stretching surface. The governing partial differential equations of continuity, momentum, energy, angular momentum, nanoparticle concentration and density of gyrotactic microorganism are suitably transformed to non-linear ordinary differential equations using similarity variables. The numerical solutions of these ODE's are obtained using MATLAB bvp4c. A comparative study is carried out on previously published work to ascertain the efficiency of the simulated solution. Th effect of various relevant parameters on velocity, temperature, concentration, microorganism density, skin friction, heat transfer rate, mass transfer rate, couple stress coefficients and the density number of microorganisms are analysed and presented through tables and graphs. Findings show that the velocity, temperature and density of microorganism profiles are consistently stronger when the surface tilt angle exceeds the magnetic field tilt angle, regardless of the tilt angles combination. Also, larger values of the Eckert number magnifies the Sherwood number, and the local density number of the motile microorganism while it suppresses the skin friction and the Nusselt number. In addition, escalating values of the effective Prandtl number boosts the skin friction and the Sherwood number, while the Nusselt number and the local density number of the motile microorganism declines. Furthermore, elevating the bioconvection Rayleigh number results in higher fluid angular velocity, density of microorganism and Nusselt number, but simultaneously decrease the fluid velocity, skin friction, Sherwood number and local density number of microorganism.
Publisher
International Association of Engineers
