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Scale Effects on Quasi-Steady Solid Rocket Internal Ballistic Behaviour
Department of Aerospace Engineering, Ryerson University, 350 Victoria Street, Toronto, Ontario, M5B2K3, Canada
Received: 23 October 2010; in revised form: 4 November 2010 / Accepted: 11 November 2010 / Published: 15 November 2010
Abstract: The ability to predict with some accuracy a given solid rocket motor’s performance before undertaking one or several costly experimental test firings is important. On the numerical prediction side, as various component models evolve, their incorporation into an overall internal ballistics simulation program allows for new motor firing simulations to take place, which in turn allows for updated comparisons to experimental firing data. In the present investigation, utilizing an updated simulation program, the focus is on quasi-steady performance analysis and scale effects (influence of motor size). The predicted effects of negative/positive erosive burning and propellant/casing deflection, as tied to motor size, on a reference cylindrical-grain motor’s internal ballistics, are included in this evaluation. Propellant deflection has only a minor influence on the reference motor’s internal ballistics, regardless of motor size. Erosive burning, on the other hand, is distinctly affected by motor scale.
Keywords: solid rocket motor internal ballistics; scale effects; quasi-steady operation
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Cite This Article
MDPI and ACS Style
Greatrix, D.R. Scale Effects on Quasi-Steady Solid Rocket Internal Ballistic Behaviour. Energies 2010, 3, 1790-1804.
Greatrix DR. Scale Effects on Quasi-Steady Solid Rocket Internal Ballistic Behaviour. Energies. 2010; 3(11):1790-1804.
Greatrix, David R. 2010. "Scale Effects on Quasi-Steady Solid Rocket Internal Ballistic Behaviour." Energies 3, no. 11: 1790-1804.