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Exploration of thrust drag characteristic of rocket ramjet combined cycle dynamic system
Author(s): 
Pages: 1-5
Year: Issue:  3
Journal: Journal of Rocket Propulsion

Keyword:  rocket ramjet combined cycle dynamic systemthrust drag characteristic researchsimulation test;
Abstract: 推阻力是火箭冲压组合动力系统的重要特性,研究推阻特性及影响因素对动力系统研发极为重要.对模型动力系统在高空高速点下的推阻力进行了仿真和试验研究,获得了动力系统在火箭发动机模态、火箭/冲压发动机模态及冲压模态、不同余气系数下的推阻力.结果表明:所研究的模型在火箭发动机模态下,火箭发动机推力室在动力系统内产生的推力大于火箭发动机的设计推力;火箭/冲压发动机共同工作条件下,推力大于火箭发动机设计推力与同一余气系数冲压发动机模态推力之和;冲压模态下,动力系统的推力随余气系数减小而增大;理论计算与试验结果相符.
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