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首页> 外文期刊>International Journal of Protective Structures >On Blast Pressure Analysis Due to a Partially Confined Explosion: II. Numerical Studies
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On Blast Pressure Analysis Due to a Partially Confined Explosion: II. Numerical Studies

机译：关于部分受限爆炸引起的爆炸压力分析：II。数值研究

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The paper presents a second part of a study aiming at understanding some characteristics of an interior explosion within a room with limited venting. Internal explosions may occur as a result of an ammunition storage explosion, or a charge explosion within a room in a terrorist action or a warhead explosion following its penetration into a closed space. This paper follows an experimental study and validation of the problem and aims at an extended numerical investigation of several aspects of the problem. The analysis has been performed for a room with rigid walls having limited venting by using AUTODYN 12 commercial program implementing the Eulerian multi-material approach, and the results were compared with the experimental measurements. An effective simplified model with lumped parameters based on the Bernoulli equation has been developed for the quasi-stationary phase of the detonation products outflow from the room through the venting openings.
机译：本文提出了研究的第二部分，旨在了解通风受限的房间内内部爆炸的某些特征。内部爆炸可能是由于弹药储存爆炸，在恐怖行动中的房间内的装药爆炸或在穿透封闭空间后发生的弹头爆炸而发生的。本文对问题进行了实验研究和验证，旨在对问题的各个方面进行扩展的数值研究。通过使用实施欧拉多材料方法的AUTODYN 12商业程序，对通风受限的刚性墙壁的房间进行了分析，并将结果与​​实验测量值进行了比较。针对从房间通过通风口流出的爆炸产物的准稳态阶段，开发了一种有效的简化模型，该模型具有基于Bernoulli方程的集总参数。

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