关键词: 推进剂燃速;复合推进剂;模拟;计算

Abstract: Temperature sensitivity is one of the aspects in propellant combustion and ballistic properties.Based on our comprehensive combustion model of solid-propellant[2-5], AP particle diameters, particle diameter distributions, Al contents, Al particle diameters as well as the combustion pressures affecting solid-propellant burning rate temperature sensitivity σp are calculated.From these results,the following conclusions have been obtained:1.the propellant bulk temperature affects mainly on the condensed phase reactions, but less on the gas phase reactions;2.the temperature sensitivity σp varies notablly with the AP particle size; and 3. increasing the Al content may lightly decrease σp,but the hi-gher the pressure is, the smaller the σp.

Key words: Propellant burning rate;Composite propellant;Simulation;Computation