Discharge Velocity

Written by Jerry Ratzlaff on . Posted in Geotechnical Engineering

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

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


 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 \(\large{ft^3}\) \(\large{m^3}\)


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Tags: Velocity Equations Water Equations Soil Equations Geotechnical Equations