Written by Jerry Ratzlaff on . Posted in Dimensionless Numbers

Pressure gradient describes which direction and at what rate the pressure changes the most at a specific location.

Abbreviated as $$p_g$$

## FORMULA

$$\frac { d p } { d x} \; = \; \frac { \Delta p } { \Delta x }$$

Where:

$$d$$ = differential

$$p$$ = pressure

$$\Delta p$$ = pressure differential, high - low pressure

$$x$$ = distance

$$\Delta x$$ = distance differential, distance between pressures