This research investigates the physics of micro-scale, fluid- structure coupling in reacting flow systems for the purpose of developing efficient micro-rocket motors. The research is motivated by the U.S. Air Force's need in the coming decade for compact propulsion devices suitable for positioning and attitude control of micro-satellites and other micro-scale space vehicles. While there is a range of technologies that are available for this purpose, chemical rockets remain extremely attractive because of the high energy density of their fuels. However, constructing efficient chemical rocket engine combustors becomes difficult as the size of the motor is reduced. The problems stem from the strong coupling between fluid and structure that exists at small scales. Heat loss and radical quenching at the walls makes it difficult to stabilize and sustain efficient combustion. This research program is in the process of developing appropriate models and acquiring experimental data that will be used to identify the physical parameters and processes that distinguish micro-combustion from combustion at conventional scales.
Micro-Combustion for Nano and Pico Satellite Propulsion Systems
2002
4 pages
Report
Keine Angabe
Englisch
Rocket Engines & Motors , Combustion & Ignition , Efficiency , Combustors , Rocket engines , Thermochemical propulsion , Microminiaturization , Nonintrusive inspection , Heat transfer , Mathematical models , Measurement , Infrared spectroscopy , Nondestructive testing , Quenching , Burning rate , Heat loss , Space propulsion , Nanotechnology , Microcombusters , Chemical propulsion , Thermal coupling , Reaction zone thickness
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