Authors: M.G Vasundhara, C M Chaithra, Chandhini K.S, G.K Kalavathi
Abstract: This review consolidates recent advancements in study of porous journal bearings under the influence of magnetic fields, surface roughness and heterogeneous slip/no-slip surfaces. Using stochastic models primarily based on Christensen's theory and incorporating magnetohydrodynamic (MHD) considerations, researchers have explored the performance variations in short, long, and finite bearings. The studies indicate that appropriate combinations of surface roughness, permeability, Hartmann number, and engineered slip conditions can enhance bearing performance, load carrying capacity, and reduce frictional losses. This paper summarizes mathematical models, numerical methodologies, and key findings, highlighting opportunities for future developments in smart bearing design.
