A theoretical model was solved numerically for simulating erosive-burning processes occuring inside the center perforation of an unslotted NOSOL-363 stick propellant. Results show that the erosive-burning phenomenon is caused by the enhanced heat feedback from the gas phase to solid phase resulting from the combined effect of increased turbulent mixing and reduction in flame stand-off distance from the burning surface. The real-time X-ray radiography system was demonstrated to be a powerful and reliable tool for nonintrusive measurements of instantaneous burning rates. A model was validated by experimental data in terms of time variation of internal diameter distributions. Thermal wave structures of NOSOL-363 stick propellants under erosive- and strand-burning conditions were measured by fine-wire thermocouples.
Erosive-burning study of stick propellants
Untersuchung der erosiven Verbrennung von stabfoermigen Treibstoffen
AIAA-Papers ; Jul ; 1-9
1987
9 Seiten, 18 Bilder, 17 Quellen
Conference paper
English
Erosive-burning study of stick propellants
AIAA | 1987
|Erosive Burning of Solid Propellants
AIAA | 2010
|Erosive burning of solid propellants
NTRS | 1993
|