Self-cleansing Velocity (Shield's formula with Pipe Geometry)

Self-cleansing velocity (Shield's formula)

Formula: v = (1/n) · R^(1/6) · √[ K (G − 1) d_p ] with R = A / P (calculated from pipe diameter and flow depth).

Pipe diameter D (m)

Flow depth h (m)

Manning's n

Shield constant K

Particle specific gravity G

Particle size d_p (mm)