The other type of flow within a conduit is pipe flow.

Open-channel flow has a free surface, whereas pipe flow does not.

Not all flow within a closed conduit is considered pipe flow.

The exception to this is when a storm sewer operates at full capacity, and then can become pipe flow.

Energy in pipe flow is expressed as head and is defined by the Bernoulli equation.

This flow of blood through the vessels can be modeled as pipe flow in an engineering system.

One area in which Poisson's effect has a considerable influence is in pressurized pipe flow.

The general form can be specialized for full pipe flows.

We return to the topic of pipe flow; the description of transition in Section 2.6 needs filling out.

This equation is used both for open channel flow as well as in pipe flows.