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Geo Ch. 7
Fluid flow in soils
Term | Definition |
---|---|
h | Energy or head, head loss, layer thickness (m) |
i | Hydraulic gradient |
k | Darcy coefficient of permeability (m/s) |
Nd | Number of equipotential "drops" in a flow net |
Nf | Number of flow channels in a flow net |
q | Flow rate (m^3/s) |
Q | Volume of flow (m^3) |
r | Radial distance from well centerline (m) |
T | Thickness of layer (m) |
u | Pore water pressure (kPa) |
v | Velocity (m/s) |
z | Potential head; depth |
mu | Absolute/dynamic viscosity (Pa-s) |
nu | Kinematic viscosity (m/s) |
Velocity head | (v^2)/(2g) |
Pressure head | hp = p/(roew*g) |
Position/elevation head | z |
For most seepage problems in soils, the _____________ was small enough to be neglected. | velocity head |
hp (also h in fluid mechanics but this is geo) | piezometric head |