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What is the relationship between boundary work and flow work?

What is the relationship between boundary work and flow work?
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Answer #2

Flow work:

It is given by the term V.dp work. This work, V.dp, is used for open flow systems like a turbine or a pump in which there is a “dp”, i.e. change in pressure. There are no changes in control volume.

Boundary work:

This is otherwise called as pressure-volume work or p.ΔV work. It occurs when the volume V of a system changes. The force is caused within the system boundary, the pressure times the surface area, to make it move. Boundary work (or p.ΔV Work) occurs when the volume V of a system changes.

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