射流冲击模型在水下爆炸实验中的应用研究  

Application Research of Jet Impact-Model in an Underwater Explosion Experiment

作　　者：崔杰[1] 李世铭 黄超[2] 姚熊亮[1] 张阿漫[1] 

机构地区：[1]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001 [2]中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室,四川绵阳621900

出　　处：《高压物理学报》2012年第5期523-530,共8页Chinese Journal of High Pressure Physics

基　　金：国家自然科学基金重点项目(50939002);国家自然科学基金(50809018;50779007);国家自然科学基金委员会-中国工程物理研究院NSAF联合基金(10976008);中央高校基本科研业务费专项资金(HEUCFZ1001);第十二届霍英东教育基金(121073)

摘　　要：为研究射流冲击载荷对结构的作用效果,从理论和数值角度研究了射流的载荷特性,以舱段模型实验为研究对象,建立了射流计算模型,结合实验数据,对射流冲击问题进行了分析。结果表明,射流冲击能够造成结构强烈的局部响应,某些情况下,射流冲击载荷引起的结构响应甚至比冲击波载荷引起的响应更大。因此,中近场水下爆炸实验需要考虑射流的影响。建立的射流模型能够较好地反映射流冲击的载荷特性,为水下爆炸实验分析提供了一种新的手段。In order to study the damage effect of ship structure subjected to jet impacting, characteristic of jet loading was investigated theoretically and numerically. A jet impact-model was verified based on a ship cabin model underwater explosion test. An analysis was made by combining the calculation re suits and test data. Results show that the jet impact can induce a strong local response on the structure. Under certain circumstance,jet impacting response is more severe than that caused by shock wave even when bubble incepts at a relatively far position. Therefore,jet impact problem cannot be considered only in proximal underwater explosion test. The jet impact model developed in this work could reflect the loading feature accurately,and would provide reference to underwater explosion experimen tal analysis.

关 键 词：射流 气泡 水下爆炸 载荷特性 舰船结构 

分 类 号：O358[理学—流体力学]