In a gas turbine engine, what are non-rotating axial-flow compressor airfoils called?

In a gas turbine engine, the non-rotating axial-flow compressor airfoils are referred to as stator vanes. These components play a critical role in the functioning of the compressor by managing the airflow through the engine. Their primary function is to provide directional stability and to convert the high velocity of the incoming air from the rotor blades into a more uniform and higher pressure flow.

Stator vanes are fixed in place and work in conjunction with rotor blades, which are the rotating components that impart energy to the airflow. While rotor blades change the pressure and momentum of the air as they spin, stator vanes guide the airflow smoothly from one set of rotor blades to the next, ensuring efficient compression and minimizing turbulence within the compressor section.

Understanding the distinction between stator vanes and other components such as rotor blades, diffuser blades, and inlet guide vanes is important for recognizing their contributions to the overall performance of the gas turbine engine. For instance, rotor blades are the moving parts that directly impart energy. Diffuser blades work to slow the airflow post-compression and increase pressure, while inlet guide vanes help steer the incoming air into the compressor at optimal angles. However, it is the stator vanes that are directly responsible for stabil