Theoretical analysis of the thermal characteristics of Ree–Eyring nanofluid flowing past a stretching sheet due to bioconvection

• Published in: Biomass conversion and biorefinery Vol. 14; no. 7; pp. 8649 - 8660
• Main Authors: Puneeth, V., Ali, Farhan, Khan, M. Riaz, Anwar, M. Shoaib, Ahammad, N. Ameer
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.04.2024; Springer Nature B.V
• Subjects: Biomedical engineering; Biotechnology; Boundary conditions; Coefficient of friction; Energy; Fluid flow; Nanofluids; Nonlinear differential equations; Original Article; Parameters; Partial differential equations; Renewable and Green Energy; Skin friction; Stretching; Thermophoresis; Gyrotactic microorganisms; Differential transformation method; Bioconvection; Ree–Eyring nanofluid; Inclined magnetic field
• ISSN: 2190-6815; 2190-6823
• DOI: 10.1007/s13399-022-02985-1

This analysis examines the flow of Ree–Eyring nanofluid over a stretching sheet in the presence of an inclined magnetic field. The nanoparticle distribution in the nanofluid is stabilised by the movement of motile microorganisms and it constitutes bioconvection. Meanwhile, the impact of thermophoresis and Brownian motion which plays an important role in the transfer of heat and mass is considered along with the convective boundary conditions. The flow of non-Newtonian nanofluid is widely used in the many manufacturing industries as a major component of cooling. Furthermore, it finds applications in thermal extrusion systems, biomedical engineering, cancer treatment etc. The governing equations are formulated using partial differential equations that are translated into non-linear differential equations employing appropriate relations based on these assumptions. The differential transformation technique (DTM) is used to solve these non-linear differential equations, and the results are shown in graphs and tables for various fluid flow parameters. The skin friction coefficient, local Nusselt, and motile density are all calculated and examined numerically. Fluid velocity is observed to increase as a function of a fluid variable. Furthermore, increasing the value of the thermal and relaxation solutal parameters reduces the temperature and concentration.