Dimensionless Numbers: Powered by PreciseUnits — 22 engineering dimensionless numbers with typed quantity inputs. Learn more Number Reynolds (Re) Prandtl (Pr) Nusselt (Nu) Grashof (Gr) Rayleigh (Ra) Biot (Bi) Stanton (St) Fourier (Fo) Jakob (Ja) Peclet (Pe) Froude (Fr) Euler (Eu) Mach (Ma) Weber (We) Capillary (Ca) Ohnesorge (Oh) Bond (Bo) Dean (De) Archimedes (Ar) Schmidt (Sc) Sherwood (Sh) Lewis (Le)Re = ρVL/μ — Ratio of inertial to viscous forces. Predicts flow regime (laminar vs turbulent).Density Velocity Char. Length Dynamic Viscosity
