Discharge Velocity

Discharge velocity, abbreviated as q, is the rate of water through a porous medium per unit of total area perpendicular to the direction of flow.

 

Discharge Velocity formulas

\(\large{ q = V_t \; A_c  }\)
\(\large{ q = k \; i \; A_c  }\)

Where:

Units	English	Metric
\(\large{ q }\) = discharge velocity	\(\large{\frac{ft}{sec}}\)	\(\large{\frac{m}{s}}\)
\(\large{ A_c }\) = area cross-section	\(\large{ft^2}\)	\(\large{m^2}\)
\(\large{ i } \) = hydraulic gradient	\(\large{dimensionless}\)
\(\large{ k } \) = permeability coefficient	\(\large{\frac{ft}{sec}}\)	\(\large{\frac{m}{s}}\)
\(\large{ V_t } \) = total volume of soil	\(\large{ft^3}\)	\(\large{m^3}\)