Thermodynamic cycle analysis of solid propellant air-turbo-rocket
Solid propellant air-turbo-rocket (SPATR) is an air-breathing propulsion system. A numerical model of performance and characteristics analysis for SPATR was presented and the corresponding computer program was written according to the operation characteristics of SPATR. The influence on the SPATR performance at design point caused by the gas generator exit parameters and compressor pressure ratio had been computed and analyzed in detail. The off-design perform-ance of SPATR at sea level and high altitude had also been computed. The performance of thrust and specific impulse for SPATR with different solid propellant had been compared at off-design points, and the off-design performance comparison had been made between fuel-rich and oxygen-rich. The computation results indicated that SPATR operates within wide range of Maeh number (0 ～3) and altitude (0～12 km), and SPATR possesses high specific thrust (1 200 N/(kg/s)) and high specific impulse (7000 N/ (kg/s)) when fuel-air ratio of combustor equals fuel-air ratio.
作 者： CHEN Xiang CHEN Yu-chun TU Qiu-ye ZHANG Hong CAI Yuan-hu 作者单位： 刊 名： 航空动力学报 ISTIC EI PKU 英文刊名： JOURNAL OF AEROSPACE POWER 年，卷(期)： 2009 24(2) 分类号： V435 关键词： solid propellant air-turbo-rocket (SPATR) off-design points numerical model fuel-rich gases solid propellant