Comparison between non-Newtonian and Newtonian Lubrication of Journal Bearing Considering Cavitation using CFD

摘要

Based on computational fluid dynamic (CFD) and mass-conservation cavitation boundary conditions, in this paper, the non-Newtonian and Newtonian lubrication of textured journal bearing are compared. The numerical analysis is undertaken under the condition of different dimple depth and lubricant behavior. The results including the hydrodynamic pressure distribution, load support and friction force are gained and compared for optimizing dimple depth. The present results illustrate a superior performance of the Newtonian lubricant in comparison to the other lubricant types.