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高空核爆炸碎片云早期扩展规律研究
Research of the early debris expansion from high-altitude nuclear explosions
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摘要: 利用磁流体力学理论建立了描述碎片云运动的壳层模型，采用该模型模拟了美国Starfish高空核爆炸试验碎片云的运动参数，通过与文献模拟结果的比对，验证了所建模型的正确性．针对典型大当量和小当量核爆的不同，重点模拟了千吨级和百万吨级核武器在100，400和1500km高度爆炸时碎片云运动扩展情况，分析了当量的差异引起的扩展规律的不同．结果表明：高空核爆炸时不同爆炸条件和大气环境对碎片云的扩展规律有着显著的影响，不同方向上碎片云的环境参数差异明显．Abstract: Based on magnetohydrodynamic theory a shell model is developed to describe debris motion of high-altitude nuclear explosion. The debris motion parameter of Starfish is simulated. The model iS verified by comparison with the results available from the literature. For the comparison between typical high-yield and low-yield nuclear explosion, the debris motions of kiloton and megaton at 100 km, 400 km and 1500 km are especially simulated. The difference in expansion law, caused by explosion yield, is analyzed. The results show that explosion condition and atmospheric environment have a significant influence on the expansion of the law of the debris cloud, and the debris environmental parameters in different directions are significantly different from each other.
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