Plasma actuated airfoil cascade airflow directing system

A system for directing airflow, a gas turbine engine, and a method for directing airflow exiting a cascade of internal airfoils are provided. An exemplary system for directing airflow includes a cascade (152) of internal airfoils (154) spanning an airflow path. Each of the internal airfoils includes a rounded trailing edge (164). The system further includes at least one plasma generating device (10) positioned on the rounded trailing edge of each internal airfoil. Also, the system includes a controller configured to selectively energize and deenergize each plasma generating device to selectively alter a direction of local airflow around each internal airfoil to produce a combined airflow exiting the cascade in a desired direction.