What are the two basic elements of the turbine section in a turbine engine?

The turbine section of a turbine engine is primarily composed of two fundamental components known as the stator and rotor. The rotor consists of the rotating blades that convert thermal energy from the combustion gases into mechanical energy, which drives the compressor and other accessories. Meanwhile, the stator encompasses stationary components that guide the flow of gases and optimize the performance of the rotor blades.

This distinction between stator and rotor is crucial because it highlights how energy is transformed within the turbine section. The rotor absorbs energy from the high-velocity gases that expand through it; conversely, the stator ensures that this flow is managed effectively to maximize the efficiency of the energy conversion process. Understanding the relationship and function of these two elements is essential for comprehending how turbine engines operate at a fundamental level.