A stator is a stationary part of a bladed machine that interacts with a rotating rotor. ODC analyzed its operation using the example of an axial compressor of a gas turbine engine. The name comes from the Latin sto — “I stand”.
The compressor increases air pressure before the combustion chamber. Rotor blades force air through stages, but without stationary stator rings, the process is impossible. The flow movement is similar to climbing stairs: with each step, the blades decrease in size, their number increases, and the pressure rises. The stator directs air to the rotor blades of the next stage and prevents flow separation.
This is what ensures stable flow and gas-dynamic stability of the engine. The efficiency of operation directly depends on it. Understanding the role of the stator is critical for designing reliable compressors, where each element affects the overall thrust and fuel consumption.
As reported www1.ru, earlier ODC explained in detail the operating principle of the turbine in the PD-14 aircraft engine for the MS-21 airliner.
Read more on the topic:
- Why the Tu-95MS flies on propellers: how the four NK-12MP engines are designed
- Why the MC-21 received the PD-14 engine instead of the PS-90