Nonlinear axial combustion instability occurs when one or more strong gaseous compression waves propagate longitudinally within motor; nonlinear unsteady flow field derives energy through interaction with combustion process and causes increase in time-averaged burning rate, pressure, and thrust; behavior was investigated using polyurethane-ammonium perchlorate propellants and some 200 motors; reproducible results were obtained; motors were found to be linearly stable and nonlinearly unstable with respect to initiation of instability.
Nonlinear axial combustion instability in solid propellant motors
AIAA J
AIAA Journal ; 2 , n 2
1964
10 pages
Article (Journal)
English
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