BALLISTIC PROPERTIES PREDICTION FOR VARIANT BUTALITES COMPOSITIONS, AN EASY ABSTENTION TECHNIQUE | ||
| The International Conference on Chemical and Environmental Engineering | ||
| Article 17, Volume 6, 6th International Conference on Chemical & Environmental Engineering, May 2012, Pages 1-23 PDF (497.9 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/iccee.2012.35896 | ||
| Authors | ||
| W. Abdel-Wareth1; X. Xu2 | ||
| 1Egyptian Armed Forces. | ||
| 2Professor., School of Astronautics, BUAA, Beijing 100191, China. | ||
| Abstract | ||
| Abstract Ballistic properties for variant Butalites formulations based on Ammonium perchlorate (AP) and hydroxy terminated polybutadiene with some other additives were practically investigated then theoretically predicted. The predictions were investigated for formulations with burning rates ranging from 0.26 to 17.94 mm/sec at 70 bar. The predictions were performed using the developments applied to the basic model of multiple flames, the BDP model. The developments were established over the model equations using an easy abstention technique, without multiple flame standoff distances. The results were verified by considering AP regression as the rate-controlling step in combustion, by introducing the additives to the model equations in a passive technique, by the use of a one-dimensionally limited temperature profile to estimate the propellant surface temperature, and by solving the combustion equations iteratively for the mass flux and surface temperature until they reached the required convergence. A computer program was established for obtaining the linear burning rate, surface temperature and other ballistic properties of the previous formulations. The results showed that the predicted linear burning rates were acceptable and verified the international acceptance margins in this field. | ||
| Keywords | ||
| Composite propellants; Combustion; Ballistic properties; Linear Burning rate | ||
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