Hydraulic gradient


Hydraulic head or piezometric head is a specific measurement of liquid pressure above a geodetic datum. The hydraulic gradient is a vector gradient between two or more hydraulic head measurements over the length of the flow path and can be calculated between two points with known head value.

Related formulas


iHydraulic gradient (dimensionless)
h2Hydraulic head of one point (m)
h1Hydraulic head of the other point (m)
dl the flow path length between the two piezometers (m)