reynolds_number - Reynolds Number Re

3.9.2 reynolds_number - Reynolds Number $Re$

re = reynolds_number(v,d,nu)
re = reynolds_number(v,d,mu,rho)

Calculate the dimensionless Reynolds number given the velocity and diameter of a pipe as well as either the kinematic viscosity or the density as well as dynamic viscocity.

DV VD ρ Re= -ν-= --µ-

Arguments

v: Velocity ( $m/s$ ).
d: Diameter ( $m$ ).
nu: Kinematic viscocity ( $m2/s$ ).
mu: Dyanamic viscocity ( $Pa·s$ ).
rho: Density ( $3 kg/m$ ).

Returns Reynolds number, $Re$ .

Possible Errors

Reynolds number unknown amount of arguments: The function must either be supplied with 3 arguments, $V$ , $D$ and $ν$ or with 4 arguments, $V$ , $D$ , $µ$ and $ρ$ .

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