The pressure drop in laminar flow is independent of the pipe material's surface roughness, as established by the fundamental equations governing laminar flow dynamics. Unlike turbulent flow, where surface roughness significantly impacts pressure drop, the laminar flow equations do not include parameters for material characteristics. This is due to the nature of the boundary layer, where the wall velocity is effectively zero, leading to a consistent pressure drop regardless of the pipe material.
PREREQUISITESFluid dynamics students, engineers working with piping systems, and researchers focused on flow behavior in various materials.
Bystander said:The boundary layer velocity is zero.