Other
Scientific paper
Jan 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002iaf..confe.794y&link_type=abstract
IAF abstracts, 34th COSPAR Scientific Assembly, The Second World Space Congress, held 10-19 October, 2002 in Houston, TX, USA.,
Other
Scientific paper
propulsion system because of the advantages such as: shorter overall length, larger burning surface area, nearly constant burning surface area over certain time periods, etc. The flame-spreading rates in the fin-slot regions are significantly lower than those of a typical circular bore region. Flame-spreading processes in fin-slot has the potential influence on the behavior of the overall ignition transient. many design limits. Flame-spreading processes in fin-slot is related to propellant property and structural dimension of fin slots. The setting up of initial chamber pressure has a relationship with the proportion of initial burning surface of slots, propellant burning rate and the igniter flow. Pressurization rates and ignition lag interval are restricted by propellant property, structural dimension of slots, and nozzle closure opening pressure. match relation among design limits of the test motor such as propellant burning rate, igniter flow, nozzle closure opening pressure and proportion of initial burning surface of slots is analysed by using the empirical formula and the calculation model of the ignition pressurization of solid motors with fin slots grain. The results show that propellant property, nozzle closure opening pressure and structural dimension of fin slots have an important effect on the ignition transients, and igniter flow has little effect on it. other different structural dimension of fin slots.
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