# Will an axial compressor work with an ideal fluid?

Will an axial compressor, like the one described starting on page 275 of Mechanics and Thermodyanmics (PDF link), work if the flow was assumed to be ideal (i.e. incompressible and inviscid)?

Specifically, what mechanism will slow the flow down in the axial direction? It's my understanding that slowing the flow down is the job of the stators, but I fail to see how they accomplish this in the axial direction. The author states on page 284 that the axial flow velocity through the compressor is made constant by design but never explains how that design is achieved and I'm curious if that design could still be achieved with an incompressible fluid. -Thanks in advance!

• Are you asking mathematically or physically?
– JZYL
Dec 19, 2019 at 13:58
• I'm wondering what a compressor might do with an incompressible fluid? Dec 19, 2019 at 15:50
• @JZYL, I think I'm looking for more of a physical explanation based on the math (i.e. an incompressible fluid is not physically possible so the mathematical assumptions must be considered) Dec 19, 2019 at 16:44
• @Haukinger, haha I see the seeming paradox, you cannot compress a fluid by increasing it's density (because it's incompressible), but you can increase it's pressure. I guess my question is trying to determine whether a compressor would work on a fluid like water (essentially incompressible). Dec 19, 2019 at 16:48
• Yes, you can axially compress water: en.wikipedia.org/wiki/Axial-flow_pump
– JZYL
Dec 19, 2019 at 16:56