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Reynolds number for water

The Reynolds number is a dimensionless number.

Symbol
$\mathrm{Re}_w$
Formulae
$\frac{V_w D_{ext}}{100\nu_w}$extermal convection
$\frac{V_{fluid} D_{in}}{\nu_w}$internal convection
Related
$D_{ext}$
Overall outer diameter of pipe [m]
$D_{in}$
Inner diameter of pipe [m]
$\nu_w$
Kinematic viscosity for water [m$^2$/s]
$V_{fluid}$
Velocity of fluid [cm/s]
$V_w$
Velocity of water [cm/s]
Used in
$\mathrm{Nu}_w$
Nusselt number, surface to water