Progress in assessing hazards of asteroid impact on earth

被引：0
|
作者：
Dang, Leining [1 ]
Bai, Zhiyong [1 ]
Shi, Yilei [1 ]
Huang, Jie [1 ]
机构：
[1] Institute of Hypervelocity Aerodynamics, China Aerodynamics Research and Development Center, Mianyang 621000, China National Key Laboratory of Aerospace Physics in Fluids
来源：
Advances in Mechanics | 2024年 / 54卷 / 03期
关键词：
asteroid; hazard assessment; impact on earth; model and method;
D O I：
10.6052/1000-0992-23-047
中图分类号：
学科分类号：
摘要：
Asteroid impact on earth poses a potential threat to humanity. Over the past 20 years, planetary defense has become a hot research area internationally, and it is also a crucial security requirement for our country. Assessing the hazards of asteroid impact on earth is a significant research topic within planetary defense. It is noted that asteroid impacts on earth exhibit characteristics of low probability, high hazard and randomness. These hazards include overpressure, thermal radiation, earthquake, tsunami, and global effects. Hazard assessment is applied in three scenarios: defense decision-making, defense implementation, and ground civil defense. The input and output of hazard assessment, the progress of numerical simulation and engineering computation in hazard assessment in terms of model, method and software, as well as the research status of the five types of hazards, are summarized. Furthermore the advancement of hypervelocity issues of earth impact by asteroid is presented. Finally, the current research limitations are identified, and prospects for future work are provided. © 2024 Advances in Mechanics.
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页码：563 / 605
页数：42
相关论文
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