Combustion Instability Study of Solid Propellants.
Final rept. Sep 71-Mar 73,
UNITED TECHNOLOGY CENTER SUNNYVALE CALIF
Pagination or Media Count:
The rotating valve method of measuring the combustion response of solid propellants to small amplitude pressure oscillations were evaluated. The method is based on producing pressure oscillations in a small rocket motor by varying the area of a secondary exhaust nozzle in a periodic manner. This is accomplished by using a rotating value as the secondary orifice. The valve apparatus operates concurrently with a primary nozzle which controls the steady-state pressure. The frequency of the oscillations is determined by the rotational speed of the valve. A theoretical analysis was conducted to relate the combustion response function to measurable ballistic properties of the combustion chamber. Modified author abstract
- Combustion and Ignition
- Solid Rocket Propellants