基于相似理论的炸药海中沉底爆炸能量计算  

Energy Calculation of Underwater Explosion over Seabed Charge Based on Similarity Law

作　　者：邵建军[1] 张永坤[1] 赵红光[1] 李家波[1] 穆春国 

机构地区：[1]中国人民解放军91439部队 [2]中国人民解放军65589部队

出　　处：《四川兵工学报》2015年第6期124-127,共4页Journal of Sichuan Ordnance

摘　　要：水下爆炸能量输出特性评估被广泛应用于水下爆炸,过去对水下爆炸能量输出特性的研究忽略了海底影响,是导致海底爆炸能量评估产生误差的重要原因;因此,应采取有效的措施确定海底爆炸能量预估方法;基于相似理论进行了海中沉底爆炸冲击波能、气泡能的试验计算;经过理论推导发现,传统的冲击波能及气泡能计算公式仍然满足相似律;研究结果显示:水下爆炸冲击波能及气泡能受海底条件影响较大,气泡脉动周期变长,冲击波压力增强。Estimating the energy output characteristics for underwater explosion of charge has been widely used in the field of underwater explosion. The determination of t, the energy output characteristics for sea- bed explosion of charge, was lack of influence. It is one of the main factors on the error of energy esti- mated seabed explosion, so that effective steps should be taken to determine the method of energy esti- mated seabed explosion. In order to understand the energy output characteristics for underwater explosion of charge in seabed, the shock wave energy and bubble energy were calculated after underwater explosion based on the similarity law respectively. In traditional shock wave energy and bubble energy empirical formulas, it satisfied the similarity law. The underwater explosion study results show that the shock wave en- ergy, bubble energy has been strongly affected by explosion in seabed than that of explosion in the free field explosion. Bubble pulse period of underwater explosion in seabed is larger than that of explosion in free field explosion. Shock wave pressure of underwater explosion in seabed is more intense than that in free field explosion.

关 键 词：装药 海底爆炸 冲击波能 气泡能 

分 类 号：O383[理学—流体力学]