推进剂通道结构对太阳热发动机影响数值研究
Effects of propellant heat groove configuration on solar thermal propulsion performance
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摘要: 运用数值模拟方法,通过改变推力室螺旋通道结构参数,对太阳热发动机(STP)能进行了详细的研究,深入分析了STP的推力,比冲、质量流量变化情况,得出了一般情况下螺旋通道的长度,宽度参数范围,同时比较了单、双通道的优缺点,所得的结论对STP推力室/热吸收室推进剂加热通道结构设计具有指导意义.Abstract: A detailed study of solar thermal propulsion (STP) performance was made using numerical simulation method by changing spiral groove parameter in this paper. The optimum design parameter was gotten according to analysis on STP's thrust,specific impulse and mass flow rate. Advantage and disadvantage of performances were also compared between single and double spiral groove STP. The conclusion provides a guidance to design of STP thrust chamber spiral groove.
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Key words:
- solar thermal propulsion(STP) /
- thruster room /
- convection heat transfer /
- thrust /
- specific impulse
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