Editing Turbopump (section)

==Centrifugal turbopumps==
{{main|Centrifugal pump}}
[[Image:Centrifugal 2.png|thumb|right|In centrifugal turbopumps a rotating disk throws the fluid to the rim.]]

Most turbopumps are centrifugal - the fluid enters the pump near the axis and the rotor accelerates the fluid to high speed. The fluid then passes through a [[Volute (pump)|volute]] or a diffuser, which is a ring with multiple diverging channels. This causes an increase in [[dynamic pressure]] as fluid velocity is lost. The volute or diffuser turns the high kinetic energy into high pressures (hundreds of [[Bar (unit)|bars]] is not uncommon), and if the outlet [[backpressure]] is not too high, high flow rates can be achieved.