Reynolds number noun1 •A dimensionless parameter that determines the behavior of viscous flow patterns. In pipe flow a value less than roughly 2,000 (known as the critical Reynolds number) produces laminar flow, one above about 3,000 produces turbulent flow (intermediate values produce unpredictable behavior).Reynold Number [sic]— It determines the state of flow of liquid through a pipe... — 1995 formsReynolds numbers
