Bingham Number

Bingham number, abbreviated as Bm, a dimensionless number, is the ratio of yield stress to visvous stress.

 

Bingham Number formula

\(\large{ Bm = \frac{ \tau_y  \; l }{ \mu\; v }  }\)

Where:

\(\large{ Bm }\) = Bingham number

\(\large{ l }\) = characteristic length

\(\large{ \mu }\)  (Greek symbol mu) = dynamic viscosity of fluid

\(\large{ v }\) = velocity

\(\large{ \tau_y }\)  (Greek symbol tau) = yield stress