Performance of nano-powders SiO2 and SiC in the flow of engine oil over a rotating disk influenced by thermal jump conditions

In this article influence of velocity partial slip is addressed on transportation of silicon dioxide and silicon carbide suspended in engine oil base fluid in presence of a constant magnetic field. In this investigation to get better lubrication performance, we considering two different lubricants namely SiO2 and SiC in the flow of engine oil as base fluid. Nanofluidic transport is performed owing to the rotational motion of the disk. Additionally, mechanism of heat transfer is reported through temperature jump conditions. The mathematical formulation is performed in cylindrical coordinates and the governing set of equations is simplified by invoking similarity analysis. Precise similarity solutions are established for the full range of slip coefficients by means of shooting algorithm. Also, a collocation based MATLAB routine is used for findings the solutions for Velocity, pressure and temperature distributions Important physical quantities such as skin friction coefficient and Nusselt numbers are calculated and displayed through bar charts. One of the key findings includes that lubrication can be enhanced by using SiO2 and SiC in engine oil. Moreover, sphere-shaped silicon dioxide engine oil-based nanofluid attains minimum temperature whereas maximum is attained by lamina shaped silicon carbide nanoparticles. (C) 2020 Elsevier B.V. All rights reserved.

Automated summary

This study addresses the influence of velocity partial slip on the transportation of silicon dioxide and silicon carbide in engine oil base fluid, with a focus on improving lubrication performance through nanofluidic transport and temperature jump conditions. Mathematical formulation in cylindrical coordinates and similarity analysis lead to the establishment of precise similarity solutions for a full range of slip coefficients. Key findings include the enhanced lubrication performance achieved by using SiO2 and SiC in engine oil.