Bioconvective MHD Flow of Micropolar Nanofluid Over a Stretching Sheet Due to Gyrotactic Microorganisms with Internal Heat Generation/Absorption and Chemical Reaction

The present work deals with the study of bioconvective MHD flow of micropolar nanofluid containing gyrotactic microorganisms along with chemical reaction over a stretching sheet. Nonuniform heat source/sink and viscous dissipation effects are also considered. The chemical reaction phenomenon reduces the nanoparticle concentration and enhances the mass diffusion rate on the sheet. The nonlinear coupled system of PDEs is converted into nonlinear system of ODEs by using a similarity transformation, and the transformed equations are solved by using MATLAB bvp4c solver. The skin friction coefficient, the microrotation parameter, the Nusselt number, the Sherwood number, and the motile density number are numerically computed and presented. The effects of the pertinent physical parameters on the velocity, angular velocity, temperature, nanoparticle concentration, and motile density of microorganisms are inspected. The present results are relevant in improving the performance of microbial fuel cells and heat transfer devices.