You can consider pressure as energy density. Note:

$$P=\frac{F}{A}=\frac{Fd}{Ad}=\frac{W}{V}$$

When flow encounters a restriction, the pressure and therefore pressure energy drops. On the other hand the velocity, and therefore kinetic energy, increases for conservation of energy in the direction of the flow.

Hope this helps

You can consider pressure as energy density. Note:

$$P=\frac{F}{A}=\frac{Fd}{Ad}=\frac{W}{V}$$

When flow encounters a restriction, the pressure, and thus pressure energy, drops. This may seem counter intuitive until you realize that at the same time the flow velocity and thus kinetic energy increases at the restriction.

For a given elevation, neglecting friction losses, conservation of energy requires any increase in kinetic energy in the flow equal any decrease in pressure energy in the flow due to the flow work done per unit volume pushing the fluid through the restriction.

Hope this helps.