# Shields Parameter Calculator - Motion of Sediment in a Fluid Flow

Posted by Dinesh onCalculate the initiation of motion of sediment in a fluid flow using simple shields parameter wastewater calculator online. The Shields parameter is a nondimensional unit or number used to calculate the initiation of motion of sediment in a fluid flow. It is also called as *Shields criterion* or *Shields number*.

## Shields Parameter Calculation

### Formula:

^{?}_{×} = ? / (?_{s} - ?)gD

? - is a dimensional shear stress

?

_{s}- is the density of the fluid

? - is the density of the sediment

g - is acceleration due to gravity

D - is a characteristic particle diameter of the sediment