The project, sponsored by Applied Mathematics, Inc., is studying the fluid flow through an electro-pneumatic pulsed jet actuator, which consists of a miniature valve connected to a convergent nozzle by a small flow chamber. The fluid flow is considered to be one-dimensional, compressible, and isentropic. The goal is to understand a steady state model for the actuator and extend the model for the dynamic case. The system will be optimized for maximum output using the variables of flow air pressure and temperature, source air pressure and temperature, actuator frequency, and duty cycle.