Surface Tension Devices for Management of Space Propulsion System Propellants

Surface tension principles applicable to the design of propellant management devices for static retention and dynamic control of space propulsion system propellants are discussed. The characteristics of ideal propellant retention and control (management) systems are introduced as criteria for judging proposed designs. Three typical missions are examined and are functionally characterized as (a) large tank high thrust systems, (b) long-life low-thrust systems, and (c) minimum center-of-gravity travel systems. The leading mission requirements and constraints and their influence on the design of capillary propellant management systems are discussed. Flight and design analysis experience are presented and simulation test techniques introduced.