Parametric Study of Acceleration Effects on Burning Rates of Metallized Solid Propellants
| Autor: | Arie Peretz, Michael D. Fuchs, Y.M. Timnat |
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| Rok vydání: | 1982 |
| Předmět: | |
| Zdroj: | Journal of Spacecraft and Rockets. 19:539-544 |
| ISSN: | 1533-6794 0022-4650 |
| DOI: | 10.2514/3.62298 |
| Popis: | An experimental parametric study of the burning rate augmentation, resulting from operation in acceleration fields, of nine hydroxy terminated polybutadiene composite metallized solid propellants is described. The apparatus consists of a centrifuge and two identical slab test motors, each mounted at the end of a rotating arm. Experiments in the acceleration range 0-700g at pressures between 2.5 and 16 MPa were conducted. The effects of acceleration, combustion pressure, direction of the acceleration vector, base (static) burning rate, aluminum content and particle size, total solids content, and oxidizer particle size were investigated. The burning rate augmentation was found to be strongly affected by the acceleration level, the base burning rate, the angle between acceleration vector and normal to the surface, and the oxidizer particle size. An inconsistency in the effect of aluminum content and particle size was observed. A linear relationship between the acceleration-induced burning rate augmentation ratio and the reduced acceleration parameter, as suggested by Crowe, was established for the propellants tested. However, some deviations from Crowe's model, indicating the need for modification, were noted. |
| Databáze: | OpenAIRE |
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