Editing Centrifugal compressor (section)

{{Short description|Sub-class of dynamic axisymmetric work-absorbing turbomachinery}}
[[File:Compressor wheel Napier NA357.JPG|thumb|upright= 1.35|Centrifugal impeller, shown alone]]
[[File:Turbocharger.jpg|thumb|upright= 1.35| Centrifugal compressor shown (in blue) as part of a [[turbocharger]]]]
[[File:Saturn MD-120 cutaway.jpg|thumb|upright= 1.35|Centrifugal compressor shown (in blue) as second stage of a axi-centrifugal [[jet-engine]]]]

'''Centrifugal compressors''', sometimes called '''impeller compressors''' or '''radial compressors''', are a sub-class of dynamic axisymmetric work-absorbing [[turbomachinery]].<ref name="Shepherd">{{cite book |last=Shepherd |first=Dennis G. |year=1956 |title=Principles of turbomachinery. |edition=6th |location=New York |publisher=[[Macmillan (publisher)|Macmillan]] |lccn=56002849 |oclc=5899719}}</ref>

They achieve pressure rise by adding energy to the continuous flow of fluid through the rotor/impeller. The equation in the next section shows this specific energy input. A substantial portion of this energy is kinetic which is converted to increased potential energy/static pressure by slowing the flow through a diffuser. The static pressure rise in the impeller may roughly equal the rise in the diffuser.