Hydraulic Gradient

Written by Jerry Ratzlaff on . Posted in Dimensionless Numbers

Hydraulic Gradient

Hydraulic gradient ( \(i\) ) (dimensionless number) is the change in height (pressure) to length.

Hydraulic Gradient FORMULA

\( hydraulic \; gradient   \;=\;   \frac { pressure \; head \; at \; point \; 1   \;-\;    pressure \; head \; at \; point \; 2 } {  length \; of \; column }  \)

\(i = \frac { h1 \;-\; h2} { l}  \)

Where:

\(i\) = hydraulic gradient

\(h1 \) = pressure head at point 1

\(h2\) = pressure head at point 2

\(l\) = length of column

Solve for:

\(h1 = i   l \;+\; h 2  \)

\(h2 = h1 \;-\; i  l   \)

\(l =  \frac { h1 \;-\; h2} { i}    \)

 

Tags: Equations for Pressure Equations for Hydraulic