Temperature-dependent viscosity effect on forced convective CH3OH-Fe3O4 nanofluid flow through annular duct

The importance of Methanol can be guessed from its usage as in the preparation of methyl tertiary butyl ether (MTBE) fuel, ascetic acid, formaldehyde, metabolize food, biodiesel, pharmaceutical ingredients and products, energy related applications and many more. In this research work, we numerically analyze the impact of temperature-dependent viscosity on flow and heat transfer of Methanol Iron oxide, CH3OH-Fe3O4 nanofluid through annular sector duct. The effects of pertinent parameters corresponding to temperature-dependent viscosity, m, Fe3O4 nanoparticles' contribution, n and geometrical configuration (i.e. R<^> and N), are revealed graphically by velocity contours, isotherms, velocity and temperature profiles, and discussed physically. Both parameters m and n suppress the velocity and temperature profiles by increasing the friction factor fRe and average Nusselt number Nu. Same impacts of m and n have been observed for all values of R<^> and N.

Automated summary

The importance of Methanol is evident from its wide range of applications including fuel preparation, chemical production, food metabolism, and energy related applications. This research focuses on the numerical analysis of the impact of temperature-dependent viscosity on the flow and heat transfer of Methanol Iron oxide nanofluid in an annular sector duct. The effects of temperature-dependent viscosity, Fe3O4 nanoparticles' contribution, and geometrical configuration are studied and visually represented through velocity contours, isotherms, velocity and temperature profiles. The results show that increasing the friction factor and average Nusselt number suppresses the velocity and temperature profiles.