An experimental investigation on micro-sized coaxial swirl injectors: Part I

Norman Don Love, University of Texas at El Paso


The envisioned MKV package design for this particular research project will include 20–40 MKVs each about the size of a softball and weighing less then one kilogram. The MKVs will serve as missile interception defense from foreign attacks, including seek and destroy capabilities. The primary component of this kill vehicle is the DACS (Divert and Attitude Control System)—the propulsion package that not only gives the vehicle maneuvering capability for the intercept but also keeps it balanced. The size constraints of the spacecraft, however, allow for only short chamber lengths that are not agreeable with today's industry mixing requirement standards, therefore a new more robust fuel injection system is tested for the MKV package. Three coaxial swirl injectors are tested, each with different geometrical orifice configurations. The primary focus of this paper is concerned with the cold flow testing results followed by a brief discussion of hot fire testing. These injectors are tested at different pressures and analyzed with the use of tools such as the Particle Image Velocimeter, shadowgraph and thermal imaging camera. (Abstract shortened by UMI.)^

Subject Area

Engineering, Mechanical

Recommended Citation

Love, Norman Don, "An experimental investigation on micro-sized coaxial swirl injectors: Part I" (2005). ETD Collection for University of Texas, El Paso. AAI1427710.