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Star-grain rocket motor – nonsteady internal ballistics
- Source :
-
Aerospace Science & Technology . Jan2004, Vol. 8 Issue 1, p47. 9p. - Publication Year :
- 2004
-
Abstract
- The nonsteady internal ballistics of a star-grain solid-propellant rocket motor are investigated through a numerical simulation model that incorporates both the internal flow and surrounding structure. The effects of structural vibration on burning rate augmentation and wave development in nonsteady operation are demonstrated. The amount of damping plays a role in influencing the predicted axial combustion instability symptoms of the motor. The variation in oscillation frequencies about a given star grain section periphery, and along the grain with different levels of burnback, also influences the means by which the local acceleration drives the combustion and flow behaviour. [Copyright &y& Elsevier]
- Subjects :
- *BALLISTICS
*SIMULATION methods & models
*DAMPING (Mechanics)
*OSCILLATIONS
Subjects
Details
- Language :
- English
- ISSN :
- 12709638
- Volume :
- 8
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Aerospace Science & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 11826640
- Full Text :
- https://doi.org/10.1016/j.ast.2003.09.001