地形对地面爆炸空中冲击波传播规律的影响  

Influence of Landform Slope on Propagation of Shock Wave in Ground Explosion

作　　者：徐其鹏 李芝绒[2] 陈君[2] 韩璐[2] 刘彦 苏健军[2] 黄风雷 XU Qipeng;LI Zhirong;CHEN Jun;HAN Lu;LIU Yan;SU Jianjun;HUANG Fenglei(Xi'an Modern Chemistry Research Institute,Xi'an 710065,Shaanxi,China;State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China;Beijing Institute of Technology Chongqing Innovation Center,Chongqing 401120,China)

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081 [2]西安近代化学研究所,陕西西安710065 [3]北京理工大学重庆创新中心,重庆401120

出　　处：《兵工学报》2020年第S02期96-101,共6页Acta Armamentarii

基　　金：国家安全重大基础研究项目(2019年)。

摘　　要：为研究地形对爆炸冲击波传播规律的影响,通过对坡度角分别为0°、10°、20°、30°、40°的坡地形进行爆炸实验及数值模拟,获得了不同地形条件下的冲击波超压及冲量数据。研究结果表明:冲击波峰值压力和冲量随着坡度角的增加而增大,随着爆距的增大而减小;当坡度角为40°时,靠近坡度起始位置测点处的峰值压力和冲量分别是平整地面对应值的2.36倍和1.88倍,地形坡度效应作用明显。通过对数据的处理分析,给出了在实验范围内,不同坡度地形上冲击波峰值压力及冲量与平整地面相应值的工程计算式。In order to study the influence of landform slope on the propagation law of shock wave,the explosion experiments and numerical simulations were conducted on the landforms with 0°,10°,20°,30°and 40°slopes,and the data of shock wave overpressure and impulse under different landform conditions were obtained.Results show that the peak pressure and impulse increase with increase in slope angle,and decrease with increase in relative distance.When the slope angle is 40°,the peak pressure and impulse at measuring point 3(near the initial position of slope)are 2.36 and 1.88 times of that on flat ground,and the effect of landform slope is obvious.Besides,the empirical formulas of peak air pressure and impulse between flat ground and sloping ground within the experimental range were established by fitting the experimental and simulation data,which could provide reference for engineering practice.

关 键 词：爆炸冲击波 地形 峰值压力 冲量 传播规律 

分 类 号：O382.1[理学—流体力学]