Nonlinear Dynamic Combustion in Solid Rockets: L* Effects

nonlinear combustion phenomena that have been observed experimentally but that are beyond the capability of linearized models are also predicted. These include rapid initial (over-) pressurization, propellant extinction, and dual-frequency and limit-cycle oscillations. The results suggest that some of these combustion phenomena could be due to nonlinear (but still quasi ‐steady) dynamic burning and mass conservation effects within the classical bulk-mode framework rather than more complicated e uid and e ame dynamic effects that have been proposed. In particular, the rapid rate of initial pressurization and the ignition spike commonly attributed to erosive burning may be due to nonlinear dynamic burning at low L ¤ . Even without an overpressurization spike, it appears that