The objective is the optimization of pulsed jet actuators for flow control leading to a minimized demand of net mass flow for the actuation. Several new types of actuator layouts shall be developed, designed and manufactured. The subsequent tests shall be done in a medium scale wind tunnel. The design of the actuators shall be backed by numerical simulations. Furthermore a comprehensive analysis and characterization of the free stream flow influenced by the jets shall be assured using the test results and numerical simulations. Please refer to the full topic descriptions document published in this call.