A method for calculating the optimal ratio of the fuel and solid propellant in the gas generator of a high-velocity flying vehicle is proposed. A thermodynamic approach is used to describe the processes in the gas generator. The ratio of the solid propellant and fuel in the gas generator is determined by their physical and chemical properties. An increase in the density and heat of combustion of the solid propellant and in the fuel porosity leads to reduction of the volume fraction of the solid propellant in the gas generator. An increase in the density, specific heat, specific heat of sublimation, and temperature of sublimation of the fuel leads to an increase in the volume fraction of the solid propellant in the gas generator.

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高速飞行器气体发生器固体推进剂与燃料最佳配比的热力学估计

提出了一种高速飞行器气体发生器燃料与固体推进剂最佳配比的计算方法。热力学方法用于描述气体发生器中的过程。气体发生器中固体推进剂和燃料的比例由它们的物理和化学性质决定。固体推进剂的密度和燃烧热以及燃料孔隙率的增加导致气体发生器中固体推进剂的体积分数降低。燃料的密度、比热、升华比热和升华温度的增加导致气体发生器中固体推进剂的体积分数增加。