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Reynolds number water

The Reynolds number is a dimensionless number.

Symbol
$\mathrm{Re}_w$
Formulas
$\frac{V_{w} D_{ext}}{100\nu_{w}}$extermal convection
$\frac{V_{fluid} D_{in}}{\nu_{w}}$internal convection
Related
$D_{ext}$
Diameter external [m]
$D_{in}$
Diameter pipe (inner) [m]
$\nu_{w}$
Kinematic viscosity water [m$^2$/s]
$V_{fluid}$
Velocity of fluid [cm/s]
$V_{w}$
Velocity water [cm/s]
Used in
$\mathrm{Nu}_w$
Nusselt number surface—water