Hydraulic gradient

It is ratio of height to length ie., h/L.

FS= critical hydraulic gradient/exist hydraulic gradient

icr=(saturated unit wt - water unit wt)/water unit wt

Saturated hydraulic conductivity is a quantitative measure of a saturated soil's ability to transmit water when subjected to a hydraulic gradient. It can be thought of as the ease with which pores of a saturated soil permit water movement.

1. hydraulic energy
2. solar energy
3. wind energy
4. biomass energy
5. geothermal energy
6. ocean thermal gradient energy
7. tide energy
8. ....