Measured particulate behavior in a subscale solid propellant rocket motor
Autor: | David W. Netzer, W. D. Brennan, D. L. Hovland |
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Rok vydání: | 1992 |
Předmět: | |
Zdroj: | Journal of Propulsion and Power. 8:954-960 |
ISSN: | 1533-3876 0748-4658 |
DOI: | 10.2514/3.23578 |
Popis: | Particle size distributions were measured in the combustion chamber, exhaust nozzle, and exhaust plume of a small, two-dimensional rocket motor that utilized aluminized propellants. Various nozzle contours and pressures to 4.36 MPa were utilized. For pressures less than approximately 2.4 MPa, D32 of the multimodal size distributions entering the nozzle decreased with increasing pressure. Above 2.4 MPa, the higher propellant burning rates significantly reduced particle agglomeration and increased C* efficiency. At higher pressures, D32 entering the nozzle was quite small (2-6 /u.) and monomodal, and did not vary appreciably with pressure. During tailoff, D32 was significantly larger than during the steady burn, indicating another possible source for plume signature variations. Exhaust particle D32 was 1.2-1.6 /* (with a |
Databáze: | OpenAIRE |
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