Reynolds equation

Reynolds equation describes how a thin film of fluid, such as oil, behaves between two surfaces in relative motion, like parts in a machine. It predicts how pressure builds up within this film, supporting the load and allowing the surfaces to glide smoothly without direct contact. Think of it as a way to understand how lubricants work to reduce friction and wear in mechanical systems, by modeling how the fluid's pressure and flow change under different conditions. This equation is fundamental in designing bearing and lubrication systems for machinery and automotive components.