D Das, G Sutradhar and S Kumar
Keywords: Copper infiltration, journal bearing, non-newtonicity, power law fluid.
Abstract: In nature, the heat transfer in porous media is more complicated than that in the continuous because two media of widely different properties are conducting the heat simultaneously. The lubricant used with bearing system is usually non- Newtonian such as powdered graphite and the carrier fluid in the ethylene glycol. Considerable research studies have been carried out to explain the flow field in bearing system. Different methods such as experimental mathematical analysis or numerical simulation can be employed for studying the process fluid flow. The effects of isothermal shear theory and visco-elasticity needs to be considered. During the running condition viscous heat generated, that because the temperature rise in the system, which in turn may cause the fluid to behave in the non Newtonian manner. An attempt has been made to correlate the temperature function of the developed copper infiltrated bearing under running condition with the non-newtonicity of the lubricant, assuming suitable boundary condition with proposed methodology.
[View Complete Article]