Ericksen Number

Written by Jerry Ratzlaff. Posted in Dimensionless Numbers

Ericksen Number is a dimensionless number giving the ratio of the viscous to elastic forces.

FORMULA

\( Er = \frac { \nu  v  l  } {E} \)

Where:

\(Er\) = Ericksen Number

\(\nu\) = viscosity

\(v\) = bulk fluid velocity

\(l\) = length scale

\(E\) = elasticity