球形空腔内爆炸壁面荷载特性研究  

Research on Internal Blast Load Characteristics on the Wall of Spherical Cavity

作　　者：李勇 杨茂森 年鑫喆 徐继革 Li Yong;Yang Maosen;Nian Xinzhe;Xu Jige(Public Security Management Bureau,Xi'an Public Security Bureau,Shaanxi,710082;Public Security Management Team,Inner Mongolia Autonomous Region Public Security Department,Inner Mongolia,471000;Huzhou Vocational and Technical College,Zhejiang,313000;Shaanxi Zhongbao Safety Net Technology Co.,Ltd.,Shaanxi,710075)

机构地区：[1]西安市公安局治安管理局,陕西710082 [2]内蒙古自治区公安厅治安管理总队,内蒙古471000 [3]湖州职业技术学院,浙江313000 [4]陕西中爆安全网科技有限公司,陕西710075

出　　处：《当代化工研究》2024年第18期64-66,共3页Modern Chemical Research

摘　　要：为研究球形空腔内部爆炸条件下空腔壁面反射超压的变化规律,对不同半径球形空腔内爆炸进行了数值模拟分析。结果表明,采用1 mm的网格尺寸模拟计算得到的球形空腔内壁面荷载更加接近试验值。随着空腔半径与装药半径之比逐渐增大,空腔内壁面荷载的峰值逐渐减小,且脉宽逐渐增大。In order to study the variation law of the reflected overpressure on the cavity wall,the blast in the spherical cavity with different radius was numerically simulated.The results indicate that simulation using a 1 mm mesh size provides a closer approximation to the test value for the load on the wall in the spherical cavity.As the ratio of cavity radius to charge radius increases gradually,there is a decrease in the peak of the load on the wall and an increase in the width of the pulse gradually.

关 键 词：空腔 内爆炸 壁面 荷载 

分 类 号：O383[理学—流体力学]