【摘要】 核热推进利用核裂变能加热工质,比冲可达化学火箭的2倍多,在空间活动中有广阔的应用前景。在美国和俄罗斯的研究过程中,对多个核热推进堆芯方案进行了较深入的研究。本工作介绍了这些堆芯方案的情况,详细说明了其设计特点,并总结了堆芯方案的发展趋势。更多还原

【Abstract】 Nuclear thermal propulsion heats propellant with fission energy.It’s specific impulse is double of chemical rockets.It could play an important role in space mission.During the research process about nuclear thermal propulsion in USA and Russia,many reactors were well developed.The details of the reactors core were described,the characteristics of design were indicated,and the trend of development was summarized.更多还原