Analysis of nano-bioconvection flow containing both nanoparticles and gyrotactic microorganisms in a horizontal channel using modified least square method (MLSM)

This paper purpose is to analyze the bioconvection nanofluid flow which contains both nanoparticles and gyrotactic microorganisms. We investigated a flow in a horizontal channel considering the model proposed by Kuznestov and Nield (2013). In this sort of problems, this model is more convenient and physical in comparison with other models. The least square method is utilized to solve the problem considering complicated boundary conditions. In addition, the impact of different parameters is investigated exhaustively on the temperature distribution profile, nanoparticle volume fraction and the density of motile microorganisms. It is found that such parameters can highly affect them particularly their stability. The effect of these parameters is much more obvious in vicinity of the channel walls.