< Jet Propulsion

An axial turbine operates in the reverse of an axial compressor. A set of static guide vanes or nozzle vanes accelerates and adds swirl to the fluid and directs it to the next row of turbine blades mounted on a turbine rotor.

In an Impulse turbine the pressure drop happens entirely in the nozzle vanes. In a reaction turbine the pressure drop is split between the nozzle vanes and the turbine rotor. The proportion of pressure drop in the turbine rotor is called the degree of reaction.


Theory

Cascade analysis

Stage temperature ratio


Cascade analysis

Stage temperature ratio

Axial turbine design

Stages

An axial gas turbine engine is separated into various stages. The first stage is the Compressor section, then the combustion chamber, then the turbine section.

Stator

Rotor

Blades

Blade attachment

Materials

Cooling

Clearance control

Shrouds

Coatings

Axial turbine manufacturing

Casting

Coatings

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