Bioconvective flow of bi-viscous Bingham nanofluid subjected to Thompson and Troian slip conditions

This paper describes the bioconvection phenomenon and its significant influence on the thermal features of the flow of bi-viscous Bingham (BVB) nanofluid past a vertically stretching flat surface. The analysis of the impact of convection parameters is considered along with various other forces. Meanwhile, the flow of BVB nanofluid is put through the slip conditions defined by Thompson and Troian for the velocity at the boundary. The flow of BVB nanofluid is modeled using the partial differential equations (PDEs) under the assumptions of thermophoresis and Brownian motion which occur due to the movement of nanoparticles. Along with these forces, the radiation is also considered so that the obtained results are close to the practical scenarios. Thus, using the proper Lie group similarity transformations, the intended mathematical model is converted into ordinary differential equations (ODEs). The resulting equation system is encoded using the RKF-45 technique, and the outcomes are explained using graphs and tables. The solutions found for the model showed that, for higher ranges of the non-Newtonian fluid parameter, the velocity decreases while the heat transferred by the nanofluid increases. The availability of motile density at the surface grows as the Peclet number rises, whereas the Schmidt numbers decline in their respective profiles.

Automated summary

This paper discusses the impact of bioconvection phenomenon on the thermal characteristics of bi-viscous Bingham (BVB) nanofluid flow. Analysis is done on the influence of convection parameters and other forces. Slip conditions are applied for the velocity at the boundary, and partial differential equations (PDEs) are used to model the flow considering thermophoresis, Brownian motion, and radiation. The mathematical model is then converted into ordinary differential equations (ODEs) using Lie group similarity transformations.