Experimental and numerical studies of underwater shock wave attenuation
Experimental and numerical studies of underwater shock wave attenuation
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DOI：
10.1007/s00193-003-0201-6
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发表时间：
2003-09
期刊：
影响因子：
2.2
通讯作者：
Tsutomu Saito;M. Marumoto;H. Yamashita;S. Hosseini;Atsuhiro Nakagawa;T. Hirano;Kazuyoshi Takayama
中科院分区：
文献类型：
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作者：
Tsutomu Saito;M. Marumoto;H. Yamashita;S. Hosseini;Atsuhiro Nakagawa;T. Hirano;Kazuyoshi Takayama
实验和数值研究了薄多孔层对水下激波的衰减。用10 mg叠氮化银球团爆炸产生冲击波，并测量了距爆炸中心不同距离处的压力。测量也可以在爆炸源和压力表之间放置一层纱布。比较了有和没有纱布层的结果，评价了冲击波衰减。对一种简单的波衰减模型也进行了数值模拟。计算结果与实验数据进行了比较。尽管波衰减的数学模型简单，但实验结果与数值结果的吻合是合理的。
The attenuation of an underwater shock wave by a thin porous layer is studied both experimentally and numerically. The shock waves are generated by exploding 10 mg silver azide pellets and the pressures at different distances from the explosion center are measured. Measurements are also carried out with a gauze layer placed between the explosion source and the pressure gauge. The results with and without the gauze layer are compared evaluating the shock wave attenuation. Numerical simulations of the phenomenon are also carried out for a simple wave attenuation model. The results are compared with the experimental data. Despite the simple mathematical model of wave attenuation, the agreement between the experimental and numerical results is reasonable.