Final answer:
Stators in an axial-flow compressor redirect the airflow, increase pressure, and straighten the airflow.
Step-by-step explanation:
In an axial-flow compressor, the stators serve the purpose of redirecting the airflow. They are stationary blades positioned between the rotating blades, called rotors. The stators help to convert kinetic energy into pressure energy by increasing the pressure and decreasing the velocity of the airflow. They also help to straighten the airflow and ensure that it flows smoothly through the compressor.