Abstract
Inspired by the widespread use of bioconvective nanofluids used in the formation of microbial fuel cells, microbial oil extraction processes, the food industry and more. Therefore, a two-dimensional flow of Eyring-Powell's nanofluid containing gyrotactic microorganisms has been developed by moving across a porous plate that is exposed to thermal radiation and surface suction. The Buongiorno nanofluid model is introduced to incorporate the energy and momentum equations, while the Rosseland nonlinear approximation was introduced to incorporate solar radiation properties into the energy equations. The MATLAB ‘bvp4c’ scheme was implemented to find a numerical solution to the problem. The influence of various physical parameters on the velocity, temperature and concentration distribution is analyzed. Suction lowers the temperature but increases the heat transfer rate. In addition, the suction velocity can be compensated by implanting a magnetic field in the flow field. With the enhancement of the Brownian movement and the thermophoretic movement, the temperature distribution of the brown movement increases faster than the temperature distribution of the thermophoretic movement, as does the volume fraction of the nanoparticles. The opposite trend can be observed as the Peclet number Pe increases. The suction reduces the concentration of the microorganisms and the magnetic field increases the concentration of the microorganisms. The higher the Lewis number, the lower the concentration of microorganisms. The Biot number Bi can increase the temperature and concentration of nanoparticles.
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